/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/pthread-nondet/nondet-loop-bound-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 13:55:36,527 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 13:55:36,530 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 13:55:36,572 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 13:55:36,573 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 13:55:36,574 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 13:55:36,576 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 13:55:36,579 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 13:55:36,581 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 13:55:36,583 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 13:55:36,584 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 13:55:36,586 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 13:55:36,587 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 13:55:36,589 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 13:55:36,591 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 13:55:36,593 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 13:55:36,594 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 13:55:36,595 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 13:55:36,605 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 13:55:36,608 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 13:55:36,610 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 13:55:36,612 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 13:55:36,614 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 13:55:36,615 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 13:55:36,619 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-23 13:55:36,624 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 13:55:36,625 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 13:55:36,626 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 13:55:36,627 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 13:55:36,628 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 13:55:36,628 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 13:55:36,629 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 13:55:36,630 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 13:55:36,630 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 13:55:36,631 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 13:55:36,632 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 13:55:36,634 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 13:55:36,663 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 13:55:36,663 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 13:55:36,665 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 13:55:36,665 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 13:55:36,666 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 13:55:36,666 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 13:55:36,666 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 13:55:36,667 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 13:55:36,667 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 13:55:36,667 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 13:55:36,668 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 13:55:36,668 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 13:55:36,668 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 13:55:36,669 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 13:55:36,669 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 13:55:36,669 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 13:55:36,669 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 13:55:36,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 13:55:36,670 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 13:55:36,670 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 13:55:36,671 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 13:55:36,671 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 13:55:36,671 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 13:55:36,671 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 13:55:36,672 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 13:55:36,672 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 13:55:37,100 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 13:55:37,129 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 13:55:37,132 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 13:55:37,133 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 13:55:37,134 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 13:55:37,136 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-nondet/nondet-loop-bound-1.i [2020-12-23 13:55:37,212 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/83d15c300/b65f9ca9bb6d49ce8acfcfdbdaed816d/FLAG944b3b793 [2020-12-23 13:55:37,920 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 13:55:37,920 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-nondet/nondet-loop-bound-1.i [2020-12-23 13:55:37,942 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/83d15c300/b65f9ca9bb6d49ce8acfcfdbdaed816d/FLAG944b3b793 [2020-12-23 13:55:38,239 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/83d15c300/b65f9ca9bb6d49ce8acfcfdbdaed816d [2020-12-23 13:55:38,244 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 13:55:38,247 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 13:55:38,251 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 13:55:38,251 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 13:55:38,256 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 13:55:38,257 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:55:38" (1/1) ... [2020-12-23 13:55:38,259 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29b9744c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:55:38, skipping insertion in model container [2020-12-23 13:55:38,259 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:55:38" (1/1) ... [2020-12-23 13:55:38,274 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 13:55:38,350 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-23 13:55:38,864 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-nondet/nondet-loop-bound-1.i[30035,30048] left hand side expression in assignment: lhs: VariableLHS[~t~0,] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~n~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~i~0,] [2020-12-23 13:55:38,895 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 13:55:38,907 INFO L203 MainTranslator]: Completed pre-run [2020-12-23 13:55:38,974 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-nondet/nondet-loop-bound-1.i[30035,30048] left hand side expression in assignment: lhs: VariableLHS[~t~0,] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~n~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~i~0,] [2020-12-23 13:55:38,987 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 13:55:39,097 INFO L208 MainTranslator]: Completed translation [2020-12-23 13:55:39,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:55:39 WrapperNode [2020-12-23 13:55:39,097 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 13:55:39,099 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 13:55:39,099 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 13:55:39,100 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 13:55:39,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:55:39" (1/1) ... [2020-12-23 13:55:39,157 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:55:39" (1/1) ... [2020-12-23 13:55:39,182 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 13:55:39,183 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 13:55:39,184 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 13:55:39,184 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 13:55:39,193 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:55:39" (1/1) ... [2020-12-23 13:55:39,194 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:55:39" (1/1) ... [2020-12-23 13:55:39,197 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:55:39" (1/1) ... [2020-12-23 13:55:39,197 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:55:39" (1/1) ... [2020-12-23 13:55:39,204 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:55:39" (1/1) ... [2020-12-23 13:55:39,208 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:55:39" (1/1) ... [2020-12-23 13:55:39,210 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:55:39" (1/1) ... [2020-12-23 13:55:39,213 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 13:55:39,214 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 13:55:39,215 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 13:55:39,215 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 13:55:39,216 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:55:39" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 13:55:39,332 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2020-12-23 13:55:39,333 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2020-12-23 13:55:39,333 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-12-23 13:55:39,333 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-12-23 13:55:39,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-23 13:55:39,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 13:55:39,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-23 13:55:39,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 13:55:39,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 13:55:39,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 13:55:39,338 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-23 13:55:39,811 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 13:55:39,811 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2020-12-23 13:55:39,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:55:39 BoogieIcfgContainer [2020-12-23 13:55:39,818 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 13:55:39,820 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 13:55:39,820 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 13:55:39,832 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 13:55:39,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 01:55:38" (1/3) ... [2020-12-23 13:55:39,836 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@370320cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:55:39, skipping insertion in model container [2020-12-23 13:55:39,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:55:39" (2/3) ... [2020-12-23 13:55:39,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@370320cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:55:39, skipping insertion in model container [2020-12-23 13:55:39,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:55:39" (3/3) ... [2020-12-23 13:55:39,841 INFO L111 eAbstractionObserver]: Analyzing ICFG nondet-loop-bound-1.i [2020-12-23 13:55:39,858 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-23 13:55:39,858 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 13:55:39,863 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 13:55:39,864 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-23 13:55:39,898 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:39,899 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:39,899 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:39,899 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:39,899 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:39,900 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:39,900 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:39,900 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:39,900 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:39,901 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:39,901 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:39,901 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:39,902 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:39,902 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:39,903 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:39,903 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:39,903 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:39,903 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:39,904 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:39,904 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:39,904 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:39,904 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:39,905 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:39,905 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:39,905 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:39,906 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:39,906 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:39,906 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:39,906 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:39,907 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:39,907 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:39,907 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:39,908 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:39,908 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:39,911 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:39,911 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:39,911 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:39,912 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:39,912 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:39,918 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:39,919 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:39,919 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:39,919 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:39,920 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:39,920 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:39,922 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-23 13:55:39,945 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-23 13:55:39,969 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 13:55:39,970 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 13:55:39,970 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 13:55:39,970 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 13:55:39,970 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 13:55:39,971 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 13:55:39,971 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 13:55:39,971 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 13:55:39,984 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-23 13:55:39,987 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 63 transitions, 136 flow [2020-12-23 13:55:39,991 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 63 transitions, 136 flow [2020-12-23 13:55:39,993 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 63 transitions, 136 flow [2020-12-23 13:55:40,042 INFO L129 PetriNetUnfolder]: 4/73 cut-off events. [2020-12-23 13:55:40,043 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-12-23 13:55:40,048 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 73 events. 4/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 90 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 53. Up to 4 conditions per place. [2020-12-23 13:55:40,051 INFO L116 LiptonReduction]: Number of co-enabled transitions 640 [2020-12-23 13:55:41,996 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2020-12-23 13:55:42,505 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-12-23 13:55:42,921 WARN L197 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 111 [2020-12-23 13:55:43,077 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-12-23 13:55:43,418 WARN L197 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 114 [2020-12-23 13:55:43,625 WARN L197 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-12-23 13:55:43,627 INFO L131 LiptonReduction]: Checked pairs total: 554 [2020-12-23 13:55:43,628 INFO L133 LiptonReduction]: Total number of compositions: 59 [2020-12-23 13:55:43,637 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 18 places, 12 transitions, 34 flow [2020-12-23 13:55:43,652 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 44 states. [2020-12-23 13:55:43,654 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-12-23 13:55:43,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-23 13:55:43,663 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:55:43,664 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-12-23 13:55:43,664 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-23 13:55:43,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:55:43,671 INFO L82 PathProgramCache]: Analyzing trace with hash 245417, now seen corresponding path program 1 times [2020-12-23 13:55:43,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:55:43,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416916613] [2020-12-23 13:55:43,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:55:43,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:55:43,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:55:43,916 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416916613] [2020-12-23 13:55:43,917 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:55:43,917 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-23 13:55:43,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562074942] [2020-12-23 13:55:43,923 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 13:55:43,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:55:43,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 13:55:43,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 13:55:43,946 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 3 states. [2020-12-23 13:55:43,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:55:43,981 INFO L93 Difference]: Finished difference Result 35 states and 59 transitions. [2020-12-23 13:55:43,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 13:55:43,983 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-12-23 13:55:43,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:55:43,993 INFO L225 Difference]: With dead ends: 35 [2020-12-23 13:55:43,994 INFO L226 Difference]: Without dead ends: 31 [2020-12-23 13:55:43,995 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 13:55:44,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-12-23 13:55:44,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-12-23 13:55:44,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-12-23 13:55:44,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 51 transitions. [2020-12-23 13:55:44,036 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 51 transitions. Word has length 3 [2020-12-23 13:55:44,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:55:44,036 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 51 transitions. [2020-12-23 13:55:44,036 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 13:55:44,037 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 51 transitions. [2020-12-23 13:55:44,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-23 13:55:44,037 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:55:44,038 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:55:44,038 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 13:55:44,038 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-23 13:55:44,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:55:44,039 INFO L82 PathProgramCache]: Analyzing trace with hash -998701213, now seen corresponding path program 1 times [2020-12-23 13:55:44,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:55:44,040 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752083977] [2020-12-23 13:55:44,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:55:44,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:55:44,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:55:44,230 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752083977] [2020-12-23 13:55:44,231 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:55:44,231 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 13:55:44,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792646207] [2020-12-23 13:55:44,233 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 13:55:44,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:55:44,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 13:55:44,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 13:55:44,234 INFO L87 Difference]: Start difference. First operand 31 states and 51 transitions. Second operand 4 states. [2020-12-23 13:55:44,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:55:44,257 INFO L93 Difference]: Finished difference Result 26 states and 42 transitions. [2020-12-23 13:55:44,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 13:55:44,257 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-12-23 13:55:44,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:55:44,259 INFO L225 Difference]: With dead ends: 26 [2020-12-23 13:55:44,259 INFO L226 Difference]: Without dead ends: 24 [2020-12-23 13:55:44,260 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-23 13:55:44,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-12-23 13:55:44,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-12-23 13:55:44,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-12-23 13:55:44,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 39 transitions. [2020-12-23 13:55:44,269 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 39 transitions. Word has length 7 [2020-12-23 13:55:44,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:55:44,269 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 39 transitions. [2020-12-23 13:55:44,270 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 13:55:44,270 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 39 transitions. [2020-12-23 13:55:44,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-23 13:55:44,271 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:55:44,271 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2020-12-23 13:55:44,271 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 13:55:44,271 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-23 13:55:44,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:55:44,272 INFO L82 PathProgramCache]: Analyzing trace with hash -894975147, now seen corresponding path program 1 times [2020-12-23 13:55:44,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:55:44,274 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090619419] [2020-12-23 13:55:44,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:55:44,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 13:55:44,338 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 13:55:44,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 13:55:44,364 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 13:55:44,389 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-23 13:55:44,390 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-23 13:55:44,390 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 13:55:44,391 WARN L342 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-12-23 13:55:44,391 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-12-23 13:55:44,400 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,401 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,401 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,401 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,401 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,401 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,401 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,401 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,402 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,402 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,402 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,402 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,402 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,402 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,403 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,403 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,403 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,403 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,403 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,404 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,404 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,404 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,404 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,404 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,404 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,404 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,405 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,405 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,405 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,406 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,406 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,406 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,406 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,406 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,406 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,407 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,407 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,407 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,407 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,407 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,407 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,408 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,408 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,408 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,408 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,408 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,409 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,409 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,409 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,410 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,410 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,410 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,410 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,410 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,410 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,410 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,411 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,411 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,411 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,411 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,411 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,411 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,411 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,412 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,412 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,412 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,412 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,412 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,413 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,413 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,413 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,414 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,414 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,417 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,417 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,418 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,418 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,418 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,419 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,419 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,420 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,420 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,420 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,420 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,421 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,422 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,422 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,422 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,422 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,422 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:44,423 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-23 13:55:44,424 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-12-23 13:55:44,425 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 13:55:44,425 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 13:55:44,425 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 13:55:44,425 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 13:55:44,425 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 13:55:44,426 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 13:55:44,426 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 13:55:44,426 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 13:55:44,428 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-23 13:55:44,429 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 80 transitions, 184 flow [2020-12-23 13:55:44,429 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 80 transitions, 184 flow [2020-12-23 13:55:44,429 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 80 transitions, 184 flow [2020-12-23 13:55:44,455 INFO L129 PetriNetUnfolder]: 5/94 cut-off events. [2020-12-23 13:55:44,456 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-12-23 13:55:44,457 INFO L84 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 94 events. 5/94 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 126 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 103. Up to 6 conditions per place. [2020-12-23 13:55:44,462 INFO L116 LiptonReduction]: Number of co-enabled transitions 980 [2020-12-23 13:55:47,222 WARN L197 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2020-12-23 13:55:47,345 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-12-23 13:55:47,614 WARN L197 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2020-12-23 13:55:47,742 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-12-23 13:55:47,909 WARN L197 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-12-23 13:55:48,073 WARN L197 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-12-23 13:55:48,261 WARN L197 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-12-23 13:55:48,441 WARN L197 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-12-23 13:55:48,448 INFO L131 LiptonReduction]: Checked pairs total: 1390 [2020-12-23 13:55:48,448 INFO L133 LiptonReduction]: Total number of compositions: 70 [2020-12-23 13:55:48,448 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 66 flow [2020-12-23 13:55:48,462 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 224 states. [2020-12-23 13:55:48,463 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states. [2020-12-23 13:55:48,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-23 13:55:48,463 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:55:48,464 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-12-23 13:55:48,464 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:55:48,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:55:48,465 INFO L82 PathProgramCache]: Analyzing trace with hash 410870, now seen corresponding path program 1 times [2020-12-23 13:55:48,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:55:48,465 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486726400] [2020-12-23 13:55:48,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:55:48,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:55:48,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:55:48,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486726400] [2020-12-23 13:55:48,545 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:55:48,545 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-23 13:55:48,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624773289] [2020-12-23 13:55:48,546 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 13:55:48,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:55:48,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 13:55:48,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 13:55:48,547 INFO L87 Difference]: Start difference. First operand 224 states. Second operand 3 states. [2020-12-23 13:55:48,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:55:48,582 INFO L93 Difference]: Finished difference Result 185 states and 459 transitions. [2020-12-23 13:55:48,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 13:55:48,583 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-12-23 13:55:48,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:55:48,587 INFO L225 Difference]: With dead ends: 185 [2020-12-23 13:55:48,588 INFO L226 Difference]: Without dead ends: 171 [2020-12-23 13:55:48,588 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 13:55:48,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-12-23 13:55:48,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2020-12-23 13:55:48,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2020-12-23 13:55:48,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 418 transitions. [2020-12-23 13:55:48,618 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 418 transitions. Word has length 3 [2020-12-23 13:55:48,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:55:48,619 INFO L481 AbstractCegarLoop]: Abstraction has 171 states and 418 transitions. [2020-12-23 13:55:48,619 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 13:55:48,619 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 418 transitions. [2020-12-23 13:55:48,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-23 13:55:48,620 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:55:48,620 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:55:48,620 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 13:55:48,620 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:55:48,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:55:48,621 INFO L82 PathProgramCache]: Analyzing trace with hash 806488971, now seen corresponding path program 1 times [2020-12-23 13:55:48,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:55:48,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68467988] [2020-12-23 13:55:48,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:55:48,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:55:48,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:55:48,705 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68467988] [2020-12-23 13:55:48,705 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:55:48,705 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 13:55:48,705 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999044815] [2020-12-23 13:55:48,706 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 13:55:48,706 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:55:48,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 13:55:48,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 13:55:48,707 INFO L87 Difference]: Start difference. First operand 171 states and 418 transitions. Second operand 5 states. [2020-12-23 13:55:48,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:55:48,808 INFO L93 Difference]: Finished difference Result 205 states and 460 transitions. [2020-12-23 13:55:48,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 13:55:48,809 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-12-23 13:55:48,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:55:48,811 INFO L225 Difference]: With dead ends: 205 [2020-12-23 13:55:48,812 INFO L226 Difference]: Without dead ends: 201 [2020-12-23 13:55:48,812 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-23 13:55:48,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2020-12-23 13:55:48,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 162. [2020-12-23 13:55:48,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-12-23 13:55:48,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 399 transitions. [2020-12-23 13:55:48,833 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 399 transitions. Word has length 9 [2020-12-23 13:55:48,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:55:48,834 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 399 transitions. [2020-12-23 13:55:48,834 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 13:55:48,834 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 399 transitions. [2020-12-23 13:55:48,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-23 13:55:48,835 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:55:48,835 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:55:48,836 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 13:55:48,836 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:55:48,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:55:48,837 INFO L82 PathProgramCache]: Analyzing trace with hash 827958856, now seen corresponding path program 1 times [2020-12-23 13:55:48,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:55:48,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484520601] [2020-12-23 13:55:48,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:55:48,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:55:48,934 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:55:48,934 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484520601] [2020-12-23 13:55:48,935 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1423984081] [2020-12-23 13:55:48,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:55:49,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:55:49,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-23 13:55:49,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 13:55:49,133 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-23 13:55:49,133 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 13:55:49,133 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2020-12-23 13:55:49,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779227870] [2020-12-23 13:55:49,134 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 13:55:49,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:55:49,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 13:55:49,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-12-23 13:55:49,136 INFO L87 Difference]: Start difference. First operand 162 states and 399 transitions. Second operand 5 states. [2020-12-23 13:55:49,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:55:49,250 INFO L93 Difference]: Finished difference Result 189 states and 423 transitions. [2020-12-23 13:55:49,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 13:55:49,251 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-12-23 13:55:49,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:55:49,254 INFO L225 Difference]: With dead ends: 189 [2020-12-23 13:55:49,254 INFO L226 Difference]: Without dead ends: 185 [2020-12-23 13:55:49,255 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-12-23 13:55:49,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-12-23 13:55:49,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 153. [2020-12-23 13:55:49,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-12-23 13:55:49,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 367 transitions. [2020-12-23 13:55:49,272 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 367 transitions. Word has length 13 [2020-12-23 13:55:49,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:55:49,274 INFO L481 AbstractCegarLoop]: Abstraction has 153 states and 367 transitions. [2020-12-23 13:55:49,274 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 13:55:49,274 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 367 transitions. [2020-12-23 13:55:49,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-23 13:55:49,276 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:55:49,276 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:55:49,489 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-12-23 13:55:49,490 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:55:49,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:55:49,491 INFO L82 PathProgramCache]: Analyzing trace with hash -105954365, now seen corresponding path program 1 times [2020-12-23 13:55:49,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:55:49,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484985989] [2020-12-23 13:55:49,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:55:49,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 13:55:49,542 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 13:55:49,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 13:55:49,596 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 13:55:49,612 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-23 13:55:49,613 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-23 13:55:49,613 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-23 13:55:49,613 WARN L342 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-12-23 13:55:49,619 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-12-23 13:55:49,638 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,638 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,638 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,638 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,638 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,638 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,638 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,639 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,639 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,639 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,639 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,639 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,639 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,640 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,640 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,640 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,640 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,640 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,641 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,641 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,641 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,641 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,641 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,641 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,642 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,642 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,642 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,642 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,642 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,642 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,643 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,643 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,643 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,643 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,643 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,643 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,644 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,644 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,644 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,644 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,644 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,644 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,645 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,645 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,645 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,646 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,646 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,646 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,646 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,646 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,646 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,647 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,647 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,647 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,647 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,647 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,647 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,648 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,648 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,648 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,648 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,648 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,649 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,649 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,649 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,649 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,649 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,649 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,650 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,650 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,650 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,650 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,650 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,651 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,651 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,651 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,651 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,651 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,651 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,652 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,652 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,652 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,653 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,653 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,653 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,653 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,653 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,654 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,654 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,654 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,654 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,654 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,654 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,655 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,655 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,655 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,655 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,655 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,656 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,656 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,656 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,656 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,657 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,657 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,658 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,658 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,658 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,660 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,660 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,660 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,661 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,661 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,662 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,663 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,663 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,663 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,663 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,665 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,665 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,665 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,666 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,666 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,666 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,668 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,668 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,668 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,668 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,669 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,669 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,671 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,671 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,671 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,671 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,672 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,672 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:49,673 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-23 13:55:49,674 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-12-23 13:55:49,675 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 13:55:49,675 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 13:55:49,675 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 13:55:49,675 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 13:55:49,675 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 13:55:49,675 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 13:55:49,675 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 13:55:49,675 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 13:55:49,678 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-23 13:55:49,678 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 106 places, 97 transitions, 236 flow [2020-12-23 13:55:49,679 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 106 places, 97 transitions, 236 flow [2020-12-23 13:55:49,679 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 106 places, 97 transitions, 236 flow [2020-12-23 13:55:49,732 INFO L129 PetriNetUnfolder]: 6/115 cut-off events. [2020-12-23 13:55:49,733 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2020-12-23 13:55:49,734 INFO L84 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 115 events. 6/115 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 171 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 129. Up to 8 conditions per place. [2020-12-23 13:55:49,741 INFO L116 LiptonReduction]: Number of co-enabled transitions 1380 [2020-12-23 13:55:51,545 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-12-23 13:55:53,283 WARN L197 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 107 [2020-12-23 13:55:53,439 WARN L197 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-12-23 13:55:53,875 WARN L197 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 110 [2020-12-23 13:55:54,117 WARN L197 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-12-23 13:55:54,124 INFO L131 LiptonReduction]: Checked pairs total: 1830 [2020-12-23 13:55:54,125 INFO L133 LiptonReduction]: Total number of compositions: 86 [2020-12-23 13:55:54,125 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 27 transitions, 96 flow [2020-12-23 13:55:54,165 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 683 states. [2020-12-23 13:55:54,166 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states. [2020-12-23 13:55:54,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-23 13:55:54,166 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:55:54,166 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-12-23 13:55:54,166 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:55:54,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:55:54,167 INFO L82 PathProgramCache]: Analyzing trace with hash 608948, now seen corresponding path program 1 times [2020-12-23 13:55:54,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:55:54,168 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462192436] [2020-12-23 13:55:54,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:55:54,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:55:54,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:55:54,212 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462192436] [2020-12-23 13:55:54,212 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:55:54,212 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-23 13:55:54,213 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455076885] [2020-12-23 13:55:54,213 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 13:55:54,213 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:55:54,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 13:55:54,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 13:55:54,215 INFO L87 Difference]: Start difference. First operand 683 states. Second operand 3 states. [2020-12-23 13:55:54,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:55:54,256 INFO L93 Difference]: Finished difference Result 600 states and 1886 transitions. [2020-12-23 13:55:54,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 13:55:54,257 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-12-23 13:55:54,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:55:54,265 INFO L225 Difference]: With dead ends: 600 [2020-12-23 13:55:54,266 INFO L226 Difference]: Without dead ends: 559 [2020-12-23 13:55:54,266 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 13:55:54,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2020-12-23 13:55:54,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 559. [2020-12-23 13:55:54,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states. [2020-12-23 13:55:54,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 1737 transitions. [2020-12-23 13:55:54,321 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 1737 transitions. Word has length 3 [2020-12-23 13:55:54,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:55:54,322 INFO L481 AbstractCegarLoop]: Abstraction has 559 states and 1737 transitions. [2020-12-23 13:55:54,322 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 13:55:54,322 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 1737 transitions. [2020-12-23 13:55:54,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-23 13:55:54,323 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:55:54,323 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:55:54,323 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-23 13:55:54,323 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:55:54,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:55:54,324 INFO L82 PathProgramCache]: Analyzing trace with hash -242150196, now seen corresponding path program 1 times [2020-12-23 13:55:54,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:55:54,324 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854212889] [2020-12-23 13:55:54,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:55:54,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:55:54,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:55:54,420 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854212889] [2020-12-23 13:55:54,420 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:55:54,420 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 13:55:54,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826617815] [2020-12-23 13:55:54,421 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 13:55:54,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:55:54,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 13:55:54,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 13:55:54,422 INFO L87 Difference]: Start difference. First operand 559 states and 1737 transitions. Second operand 5 states. [2020-12-23 13:55:54,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:55:54,534 INFO L93 Difference]: Finished difference Result 817 states and 2317 transitions. [2020-12-23 13:55:54,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 13:55:54,535 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-12-23 13:55:54,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:55:54,544 INFO L225 Difference]: With dead ends: 817 [2020-12-23 13:55:54,544 INFO L226 Difference]: Without dead ends: 812 [2020-12-23 13:55:54,545 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-23 13:55:54,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2020-12-23 13:55:54,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 585. [2020-12-23 13:55:54,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 585 states. [2020-12-23 13:55:54,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 1832 transitions. [2020-12-23 13:55:54,582 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 1832 transitions. Word has length 9 [2020-12-23 13:55:54,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:55:54,582 INFO L481 AbstractCegarLoop]: Abstraction has 585 states and 1832 transitions. [2020-12-23 13:55:54,582 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 13:55:54,582 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 1832 transitions. [2020-12-23 13:55:54,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-23 13:55:54,584 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:55:54,584 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:55:54,584 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-23 13:55:54,584 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:55:54,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:55:54,585 INFO L82 PathProgramCache]: Analyzing trace with hash 1898841947, now seen corresponding path program 1 times [2020-12-23 13:55:54,585 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:55:54,585 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779933199] [2020-12-23 13:55:54,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:55:54,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:55:54,666 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:55:54,666 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779933199] [2020-12-23 13:55:54,666 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1395106504] [2020-12-23 13:55:54,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:55:54,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:55:54,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-23 13:55:54,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 13:55:54,823 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-23 13:55:54,824 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 13:55:54,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2020-12-23 13:55:54,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924575800] [2020-12-23 13:55:54,825 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 13:55:54,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:55:54,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 13:55:54,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-12-23 13:55:54,826 INFO L87 Difference]: Start difference. First operand 585 states and 1832 transitions. Second operand 5 states. [2020-12-23 13:55:54,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:55:54,935 INFO L93 Difference]: Finished difference Result 843 states and 2406 transitions. [2020-12-23 13:55:54,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 13:55:54,935 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-12-23 13:55:54,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:55:54,943 INFO L225 Difference]: With dead ends: 843 [2020-12-23 13:55:54,943 INFO L226 Difference]: Without dead ends: 836 [2020-12-23 13:55:54,944 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-12-23 13:55:54,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2020-12-23 13:55:54,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 611. [2020-12-23 13:55:54,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states. [2020-12-23 13:55:54,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 1906 transitions. [2020-12-23 13:55:54,974 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 1906 transitions. Word has length 13 [2020-12-23 13:55:54,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:55:54,975 INFO L481 AbstractCegarLoop]: Abstraction has 611 states and 1906 transitions. [2020-12-23 13:55:54,975 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 13:55:54,975 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 1906 transitions. [2020-12-23 13:55:54,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-23 13:55:54,976 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:55:54,976 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:55:55,189 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-12-23 13:55:55,190 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:55:55,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:55:55,191 INFO L82 PathProgramCache]: Analyzing trace with hash -800464392, now seen corresponding path program 1 times [2020-12-23 13:55:55,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:55:55,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145781252] [2020-12-23 13:55:55,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:55:55,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:55:55,380 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:55:55,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145781252] [2020-12-23 13:55:55,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [825527629] [2020-12-23 13:55:55,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:55:55,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:55:55,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-23 13:55:55,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 13:55:55,594 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:55:55,595 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 13:55:55,595 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2020-12-23 13:55:55,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865796066] [2020-12-23 13:55:55,596 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-23 13:55:55,596 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:55:55,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-23 13:55:55,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-12-23 13:55:55,597 INFO L87 Difference]: Start difference. First operand 611 states and 1906 transitions. Second operand 12 states. [2020-12-23 13:55:55,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:55:55,904 INFO L93 Difference]: Finished difference Result 1059 states and 2818 transitions. [2020-12-23 13:55:55,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-23 13:55:55,905 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 15 [2020-12-23 13:55:55,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:55:55,912 INFO L225 Difference]: With dead ends: 1059 [2020-12-23 13:55:55,912 INFO L226 Difference]: Without dead ends: 1052 [2020-12-23 13:55:55,913 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2020-12-23 13:55:55,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2020-12-23 13:55:55,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 591. [2020-12-23 13:55:55,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2020-12-23 13:55:55,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 1840 transitions. [2020-12-23 13:55:55,944 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 1840 transitions. Word has length 15 [2020-12-23 13:55:55,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:55:55,944 INFO L481 AbstractCegarLoop]: Abstraction has 591 states and 1840 transitions. [2020-12-23 13:55:55,945 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-23 13:55:55,945 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 1840 transitions. [2020-12-23 13:55:55,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-23 13:55:55,946 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:55:55,946 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:55:56,161 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-12-23 13:55:56,162 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:55:56,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:55:56,163 INFO L82 PathProgramCache]: Analyzing trace with hash -573997344, now seen corresponding path program 2 times [2020-12-23 13:55:56,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:55:56,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278411642] [2020-12-23 13:55:56,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:55:56,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:55:56,280 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-23 13:55:56,280 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278411642] [2020-12-23 13:55:56,280 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:55:56,280 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 13:55:56,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125655711] [2020-12-23 13:55:56,281 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 13:55:56,281 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:55:56,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 13:55:56,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-12-23 13:55:56,282 INFO L87 Difference]: Start difference. First operand 591 states and 1840 transitions. Second operand 7 states. [2020-12-23 13:55:56,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:55:56,615 INFO L93 Difference]: Finished difference Result 1053 states and 2807 transitions. [2020-12-23 13:55:56,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-23 13:55:56,616 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-12-23 13:55:56,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:55:56,624 INFO L225 Difference]: With dead ends: 1053 [2020-12-23 13:55:56,624 INFO L226 Difference]: Without dead ends: 1045 [2020-12-23 13:55:56,625 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-12-23 13:55:56,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2020-12-23 13:55:56,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 536. [2020-12-23 13:55:56,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 536 states. [2020-12-23 13:55:56,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 1688 transitions. [2020-12-23 13:55:56,653 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 1688 transitions. Word has length 15 [2020-12-23 13:55:56,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:55:56,654 INFO L481 AbstractCegarLoop]: Abstraction has 536 states and 1688 transitions. [2020-12-23 13:55:56,654 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 13:55:56,654 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 1688 transitions. [2020-12-23 13:55:56,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-23 13:55:56,655 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:55:56,655 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:55:56,655 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-23 13:55:56,656 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:55:56,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:55:56,656 INFO L82 PathProgramCache]: Analyzing trace with hash -1518312316, now seen corresponding path program 1 times [2020-12-23 13:55:56,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:55:56,657 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3110516] [2020-12-23 13:55:56,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:55:56,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:55:56,746 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:55:56,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3110516] [2020-12-23 13:55:56,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1677745642] [2020-12-23 13:55:56,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:55:56,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:55:56,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-23 13:55:56,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 13:55:56,948 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-23 13:55:56,948 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 13:55:56,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 10 [2020-12-23 13:55:56,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370348622] [2020-12-23 13:55:56,953 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 13:55:56,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:55:56,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 13:55:56,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-12-23 13:55:56,955 INFO L87 Difference]: Start difference. First operand 536 states and 1688 transitions. Second operand 5 states. [2020-12-23 13:55:57,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:55:57,054 INFO L93 Difference]: Finished difference Result 736 states and 2123 transitions. [2020-12-23 13:55:57,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 13:55:57,054 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-12-23 13:55:57,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:55:57,060 INFO L225 Difference]: With dead ends: 736 [2020-12-23 13:55:57,060 INFO L226 Difference]: Without dead ends: 728 [2020-12-23 13:55:57,061 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2020-12-23 13:55:57,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2020-12-23 13:55:57,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 549. [2020-12-23 13:55:57,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 549 states. [2020-12-23 13:55:57,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 1684 transitions. [2020-12-23 13:55:57,084 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 1684 transitions. Word has length 17 [2020-12-23 13:55:57,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:55:57,084 INFO L481 AbstractCegarLoop]: Abstraction has 549 states and 1684 transitions. [2020-12-23 13:55:57,084 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 13:55:57,085 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 1684 transitions. [2020-12-23 13:55:57,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-23 13:55:57,086 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:55:57,086 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:55:57,301 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:55:57,302 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:55:57,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:55:57,303 INFO L82 PathProgramCache]: Analyzing trace with hash 173383506, now seen corresponding path program 1 times [2020-12-23 13:55:57,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:55:57,304 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185241672] [2020-12-23 13:55:57,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:55:57,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 13:55:57,321 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 13:55:57,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 13:55:57,337 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 13:55:57,346 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-23 13:55:57,346 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-23 13:55:57,346 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-23 13:55:57,346 WARN L342 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2020-12-23 13:55:57,347 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2020-12-23 13:55:57,372 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,372 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,372 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,372 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,372 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,372 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,373 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,373 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,373 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,373 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,373 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,373 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,373 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,373 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,374 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,374 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,374 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,374 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,374 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,374 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,374 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,374 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,375 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,375 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,375 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,375 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,375 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,375 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,375 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,375 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,376 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,376 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,376 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,376 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,376 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,376 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,376 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,376 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,376 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,377 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,377 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,377 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,377 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,377 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,377 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,377 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,377 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,378 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,378 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,378 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,378 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,378 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,378 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,378 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,378 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,378 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,380 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,380 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,380 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,380 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,380 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,380 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,380 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,381 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,381 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,381 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,381 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,381 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,381 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,381 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,381 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,381 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,382 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,382 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,382 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,382 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,383 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,384 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,384 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,384 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,384 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,384 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,384 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,384 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,384 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,385 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,385 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,385 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,385 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,385 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,385 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,385 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,385 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,386 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,386 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,386 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,393 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,393 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,393 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,393 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,394 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,394 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,394 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,394 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,394 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,394 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,394 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,394 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,395 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,395 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,395 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,395 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,395 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,395 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,395 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,395 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,396 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,396 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,396 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,396 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,396 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,396 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,396 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,397 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,397 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,397 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,397 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,397 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,397 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,397 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,397 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,398 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,398 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,398 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,398 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,398 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,399 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,399 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,399 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,399 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,399 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,401 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,401 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,401 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,401 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,402 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,403 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,404 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,404 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,404 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,404 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,405 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,406 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,406 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,406 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,406 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,407 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,408 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,408 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,408 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,408 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,408 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,410 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,410 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,410 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,410 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,410 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,410 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,413 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,413 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,413 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,413 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,413 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,414 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,415 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,415 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,415 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,416 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,416 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,416 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:55:57,417 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-23 13:55:57,418 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-12-23 13:55:57,419 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 13:55:57,419 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 13:55:57,419 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 13:55:57,419 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 13:55:57,419 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 13:55:57,419 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 13:55:57,419 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 13:55:57,419 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 13:55:57,422 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-23 13:55:57,423 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 126 places, 114 transitions, 292 flow [2020-12-23 13:55:57,423 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 126 places, 114 transitions, 292 flow [2020-12-23 13:55:57,423 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 126 places, 114 transitions, 292 flow [2020-12-23 13:55:57,470 INFO L129 PetriNetUnfolder]: 7/136 cut-off events. [2020-12-23 13:55:57,470 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2020-12-23 13:55:57,475 INFO L84 FinitePrefix]: Finished finitePrefix Result has 165 conditions, 136 events. 7/136 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 207 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 156. Up to 10 conditions per place. [2020-12-23 13:55:57,479 INFO L116 LiptonReduction]: Number of co-enabled transitions 1840 [2020-12-23 13:56:00,212 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-12-23 13:56:00,369 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-12-23 13:56:00,617 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-12-23 13:56:00,807 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-12-23 13:56:01,294 WARN L197 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 107 [2020-12-23 13:56:01,462 WARN L197 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-12-23 13:56:01,829 WARN L197 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 107 [2020-12-23 13:56:02,015 WARN L197 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-12-23 13:56:02,047 INFO L131 LiptonReduction]: Checked pairs total: 2897 [2020-12-23 13:56:02,048 INFO L133 LiptonReduction]: Total number of compositions: 107 [2020-12-23 13:56:02,048 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 51 places, 33 transitions, 130 flow [2020-12-23 13:56:02,185 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2060 states. [2020-12-23 13:56:02,185 INFO L276 IsEmpty]: Start isEmpty. Operand 2060 states. [2020-12-23 13:56:02,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-23 13:56:02,186 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:56:02,186 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-12-23 13:56:02,186 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-23 13:56:02,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:56:02,187 INFO L82 PathProgramCache]: Analyzing trace with hash 844595, now seen corresponding path program 1 times [2020-12-23 13:56:02,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:56:02,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000211602] [2020-12-23 13:56:02,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:56:02,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:56:02,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:56:02,217 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000211602] [2020-12-23 13:56:02,217 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:56:02,217 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-23 13:56:02,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096725219] [2020-12-23 13:56:02,218 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 13:56:02,218 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:56:02,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 13:56:02,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 13:56:02,219 INFO L87 Difference]: Start difference. First operand 2060 states. Second operand 3 states. [2020-12-23 13:56:02,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:56:02,284 INFO L93 Difference]: Finished difference Result 1889 states and 7217 transitions. [2020-12-23 13:56:02,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 13:56:02,285 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-12-23 13:56:02,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:56:02,305 INFO L225 Difference]: With dead ends: 1889 [2020-12-23 13:56:02,305 INFO L226 Difference]: Without dead ends: 1767 [2020-12-23 13:56:02,306 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 13:56:02,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1767 states. [2020-12-23 13:56:02,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1767 to 1767. [2020-12-23 13:56:02,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1767 states. [2020-12-23 13:56:02,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1767 states to 1767 states and 6690 transitions. [2020-12-23 13:56:02,419 INFO L78 Accepts]: Start accepts. Automaton has 1767 states and 6690 transitions. Word has length 3 [2020-12-23 13:56:02,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:56:02,419 INFO L481 AbstractCegarLoop]: Abstraction has 1767 states and 6690 transitions. [2020-12-23 13:56:02,419 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 13:56:02,419 INFO L276 IsEmpty]: Start isEmpty. Operand 1767 states and 6690 transitions. [2020-12-23 13:56:02,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-23 13:56:02,420 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:56:02,420 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:56:02,420 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-23 13:56:02,420 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-23 13:56:02,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:56:02,421 INFO L82 PathProgramCache]: Analyzing trace with hash 608853316, now seen corresponding path program 1 times [2020-12-23 13:56:02,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:56:02,421 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420221953] [2020-12-23 13:56:02,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:56:02,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:56:02,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:56:02,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420221953] [2020-12-23 13:56:02,500 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:56:02,500 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 13:56:02,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107621381] [2020-12-23 13:56:02,500 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 13:56:02,501 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:56:02,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 13:56:02,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 13:56:02,501 INFO L87 Difference]: Start difference. First operand 1767 states and 6690 transitions. Second operand 5 states. [2020-12-23 13:56:02,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:56:02,646 INFO L93 Difference]: Finished difference Result 2905 states and 10138 transitions. [2020-12-23 13:56:02,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 13:56:02,646 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-12-23 13:56:02,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:56:02,673 INFO L225 Difference]: With dead ends: 2905 [2020-12-23 13:56:02,673 INFO L226 Difference]: Without dead ends: 2899 [2020-12-23 13:56:02,674 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-23 13:56:02,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2899 states. [2020-12-23 13:56:02,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2899 to 1966. [2020-12-23 13:56:02,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1966 states. [2020-12-23 13:56:02,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1966 states to 1966 states and 7503 transitions. [2020-12-23 13:56:02,793 INFO L78 Accepts]: Start accepts. Automaton has 1966 states and 7503 transitions. Word has length 9 [2020-12-23 13:56:02,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:56:02,793 INFO L481 AbstractCegarLoop]: Abstraction has 1966 states and 7503 transitions. [2020-12-23 13:56:02,793 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 13:56:02,793 INFO L276 IsEmpty]: Start isEmpty. Operand 1966 states and 7503 transitions. [2020-12-23 13:56:02,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-23 13:56:02,794 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:56:02,794 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:56:02,794 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-23 13:56:02,794 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-23 13:56:02,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:56:02,795 INFO L82 PathProgramCache]: Analyzing trace with hash -1705235461, now seen corresponding path program 1 times [2020-12-23 13:56:02,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:56:02,795 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076367416] [2020-12-23 13:56:02,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:56:02,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:56:02,888 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:56:02,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076367416] [2020-12-23 13:56:02,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1500701402] [2020-12-23 13:56:02,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:56:02,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:56:02,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-23 13:56:02,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 13:56:03,064 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-23 13:56:03,065 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 13:56:03,065 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2020-12-23 13:56:03,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814424140] [2020-12-23 13:56:03,066 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 13:56:03,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:56:03,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 13:56:03,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-12-23 13:56:03,068 INFO L87 Difference]: Start difference. First operand 1966 states and 7503 transitions. Second operand 5 states. [2020-12-23 13:56:03,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:56:03,227 INFO L93 Difference]: Finished difference Result 3204 states and 11312 transitions. [2020-12-23 13:56:03,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 13:56:03,228 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-12-23 13:56:03,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:56:03,271 INFO L225 Difference]: With dead ends: 3204 [2020-12-23 13:56:03,272 INFO L226 Difference]: Without dead ends: 3194 [2020-12-23 13:56:03,273 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-12-23 13:56:03,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3194 states. [2020-12-23 13:56:03,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3194 to 2200. [2020-12-23 13:56:03,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2200 states. [2020-12-23 13:56:03,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2200 states to 2200 states and 8453 transitions. [2020-12-23 13:56:03,435 INFO L78 Accepts]: Start accepts. Automaton has 2200 states and 8453 transitions. Word has length 13 [2020-12-23 13:56:03,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:56:03,437 INFO L481 AbstractCegarLoop]: Abstraction has 2200 states and 8453 transitions. [2020-12-23 13:56:03,438 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 13:56:03,438 INFO L276 IsEmpty]: Start isEmpty. Operand 2200 states and 8453 transitions. [2020-12-23 13:56:03,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-23 13:56:03,438 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:56:03,439 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:56:03,654 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2020-12-23 13:56:03,655 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-23 13:56:03,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:56:03,656 INFO L82 PathProgramCache]: Analyzing trace with hash -1691179042, now seen corresponding path program 1 times [2020-12-23 13:56:03,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:56:03,657 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146156564] [2020-12-23 13:56:03,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:56:03,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:56:03,747 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:56:03,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146156564] [2020-12-23 13:56:03,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1430706097] [2020-12-23 13:56:03,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:56:03,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:56:03,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-23 13:56:03,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 13:56:03,988 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:56:03,988 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 13:56:03,988 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2020-12-23 13:56:03,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169294821] [2020-12-23 13:56:03,989 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-23 13:56:03,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:56:03,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-23 13:56:03,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-12-23 13:56:03,990 INFO L87 Difference]: Start difference. First operand 2200 states and 8453 transitions. Second operand 12 states. [2020-12-23 13:56:04,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:56:04,418 INFO L93 Difference]: Finished difference Result 4556 states and 14911 transitions. [2020-12-23 13:56:04,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-23 13:56:04,419 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 15 [2020-12-23 13:56:04,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:56:04,444 INFO L225 Difference]: With dead ends: 4556 [2020-12-23 13:56:04,444 INFO L226 Difference]: Without dead ends: 4546 [2020-12-23 13:56:04,445 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2020-12-23 13:56:04,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4546 states. [2020-12-23 13:56:04,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4546 to 2157. [2020-12-23 13:56:04,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2157 states. [2020-12-23 13:56:04,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2157 states to 2157 states and 8278 transitions. [2020-12-23 13:56:04,577 INFO L78 Accepts]: Start accepts. Automaton has 2157 states and 8278 transitions. Word has length 15 [2020-12-23 13:56:04,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:56:04,577 INFO L481 AbstractCegarLoop]: Abstraction has 2157 states and 8278 transitions. [2020-12-23 13:56:04,577 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-23 13:56:04,578 INFO L276 IsEmpty]: Start isEmpty. Operand 2157 states and 8278 transitions. [2020-12-23 13:56:04,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-23 13:56:04,578 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:56:04,578 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:56:04,792 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-12-23 13:56:04,793 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-23 13:56:04,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:56:04,794 INFO L82 PathProgramCache]: Analyzing trace with hash 1946238878, now seen corresponding path program 2 times [2020-12-23 13:56:04,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:56:04,795 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745392122] [2020-12-23 13:56:04,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:56:04,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:56:04,931 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-23 13:56:04,932 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745392122] [2020-12-23 13:56:04,932 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:56:04,932 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 13:56:04,932 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693655694] [2020-12-23 13:56:04,933 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 13:56:04,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:56:04,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 13:56:04,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-12-23 13:56:04,934 INFO L87 Difference]: Start difference. First operand 2157 states and 8278 transitions. Second operand 7 states. [2020-12-23 13:56:05,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:56:05,332 INFO L93 Difference]: Finished difference Result 4612 states and 15111 transitions. [2020-12-23 13:56:05,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-23 13:56:05,333 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-12-23 13:56:05,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:56:05,356 INFO L225 Difference]: With dead ends: 4612 [2020-12-23 13:56:05,357 INFO L226 Difference]: Without dead ends: 4601 [2020-12-23 13:56:05,357 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-12-23 13:56:05,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4601 states. [2020-12-23 13:56:05,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4601 to 2035. [2020-12-23 13:56:05,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2035 states. [2020-12-23 13:56:05,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2035 states to 2035 states and 7845 transitions. [2020-12-23 13:56:05,499 INFO L78 Accepts]: Start accepts. Automaton has 2035 states and 7845 transitions. Word has length 15 [2020-12-23 13:56:05,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:56:05,500 INFO L481 AbstractCegarLoop]: Abstraction has 2035 states and 7845 transitions. [2020-12-23 13:56:05,500 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 13:56:05,500 INFO L276 IsEmpty]: Start isEmpty. Operand 2035 states and 7845 transitions. [2020-12-23 13:56:05,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-23 13:56:05,501 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:56:05,501 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:56:05,501 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-23 13:56:05,502 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-23 13:56:05,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:56:05,502 INFO L82 PathProgramCache]: Analyzing trace with hash 1847020699, now seen corresponding path program 1 times [2020-12-23 13:56:05,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:56:05,502 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58319181] [2020-12-23 13:56:05,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:56:05,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:56:05,611 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:56:05,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58319181] [2020-12-23 13:56:05,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [786454702] [2020-12-23 13:56:05,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:56:05,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:56:05,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-23 13:56:05,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 13:56:05,798 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-23 13:56:05,798 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 13:56:05,799 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 10 [2020-12-23 13:56:05,799 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752664469] [2020-12-23 13:56:05,799 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 13:56:05,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:56:05,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 13:56:05,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-12-23 13:56:05,800 INFO L87 Difference]: Start difference. First operand 2035 states and 7845 transitions. Second operand 5 states. [2020-12-23 13:56:05,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:56:05,944 INFO L93 Difference]: Finished difference Result 3265 states and 11681 transitions. [2020-12-23 13:56:05,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 13:56:05,945 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-12-23 13:56:05,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:56:05,962 INFO L225 Difference]: With dead ends: 3265 [2020-12-23 13:56:05,963 INFO L226 Difference]: Without dead ends: 3250 [2020-12-23 13:56:05,963 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2020-12-23 13:56:05,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3250 states. [2020-12-23 13:56:06,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3250 to 2281. [2020-12-23 13:56:06,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2281 states. [2020-12-23 13:56:06,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2281 states to 2281 states and 8755 transitions. [2020-12-23 13:56:06,074 INFO L78 Accepts]: Start accepts. Automaton has 2281 states and 8755 transitions. Word has length 17 [2020-12-23 13:56:06,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:56:06,074 INFO L481 AbstractCegarLoop]: Abstraction has 2281 states and 8755 transitions. [2020-12-23 13:56:06,074 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 13:56:06,075 INFO L276 IsEmpty]: Start isEmpty. Operand 2281 states and 8755 transitions. [2020-12-23 13:56:06,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-23 13:56:06,076 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:56:06,076 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:56:06,289 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:56:06,290 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-23 13:56:06,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:56:06,291 INFO L82 PathProgramCache]: Analyzing trace with hash -440983810, now seen corresponding path program 1 times [2020-12-23 13:56:06,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:56:06,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216585989] [2020-12-23 13:56:06,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:56:06,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:56:06,397 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:56:06,397 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216585989] [2020-12-23 13:56:06,397 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [64575239] [2020-12-23 13:56:06,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:56:06,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:56:06,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-23 13:56:06,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 13:56:06,658 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-23 13:56:06,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 13:56:06,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 14 [2020-12-23 13:56:06,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387774489] [2020-12-23 13:56:06,659 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-12-23 13:56:06,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:56:06,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-12-23 13:56:06,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2020-12-23 13:56:06,660 INFO L87 Difference]: Start difference. First operand 2281 states and 8755 transitions. Second operand 16 states. [2020-12-23 13:56:07,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:56:07,954 INFO L93 Difference]: Finished difference Result 5911 states and 18956 transitions. [2020-12-23 13:56:07,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-12-23 13:56:07,955 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 19 [2020-12-23 13:56:07,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:56:07,981 INFO L225 Difference]: With dead ends: 5911 [2020-12-23 13:56:07,982 INFO L226 Difference]: Without dead ends: 5889 [2020-12-23 13:56:07,983 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=331, Invalid=1075, Unknown=0, NotChecked=0, Total=1406 [2020-12-23 13:56:08,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5889 states. [2020-12-23 13:56:08,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5889 to 2305. [2020-12-23 13:56:08,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2305 states. [2020-12-23 13:56:08,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2305 states to 2305 states and 8815 transitions. [2020-12-23 13:56:08,192 INFO L78 Accepts]: Start accepts. Automaton has 2305 states and 8815 transitions. Word has length 19 [2020-12-23 13:56:08,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:56:08,194 INFO L481 AbstractCegarLoop]: Abstraction has 2305 states and 8815 transitions. [2020-12-23 13:56:08,194 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-12-23 13:56:08,195 INFO L276 IsEmpty]: Start isEmpty. Operand 2305 states and 8815 transitions. [2020-12-23 13:56:08,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-23 13:56:08,198 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:56:08,198 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:56:08,411 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2020-12-23 13:56:08,412 INFO L429 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-23 13:56:08,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:56:08,413 INFO L82 PathProgramCache]: Analyzing trace with hash -1798913580, now seen corresponding path program 1 times [2020-12-23 13:56:08,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:56:08,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238056267] [2020-12-23 13:56:08,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:56:08,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:56:08,529 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:56:08,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238056267] [2020-12-23 13:56:08,530 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1443093764] [2020-12-23 13:56:08,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:56:08,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:56:08,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 12 conjunts are in the unsatisfiable core [2020-12-23 13:56:08,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 13:56:08,803 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:56:08,803 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 13:56:08,804 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 18 [2020-12-23 13:56:08,804 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999689271] [2020-12-23 13:56:08,804 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-12-23 13:56:08,804 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:56:08,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-12-23 13:56:08,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2020-12-23 13:56:08,805 INFO L87 Difference]: Start difference. First operand 2305 states and 8815 transitions. Second operand 20 states. [2020-12-23 13:56:10,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:56:10,330 INFO L93 Difference]: Finished difference Result 7023 states and 22323 transitions. [2020-12-23 13:56:10,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-12-23 13:56:10,331 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 19 [2020-12-23 13:56:10,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:56:10,361 INFO L225 Difference]: With dead ends: 7023 [2020-12-23 13:56:10,361 INFO L226 Difference]: Without dead ends: 7008 [2020-12-23 13:56:10,363 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 601 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=500, Invalid=1756, Unknown=0, NotChecked=0, Total=2256 [2020-12-23 13:56:10,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7008 states. [2020-12-23 13:56:10,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7008 to 2314. [2020-12-23 13:56:10,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2314 states. [2020-12-23 13:56:10,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2314 states to 2314 states and 8833 transitions. [2020-12-23 13:56:10,560 INFO L78 Accepts]: Start accepts. Automaton has 2314 states and 8833 transitions. Word has length 19 [2020-12-23 13:56:10,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:56:10,560 INFO L481 AbstractCegarLoop]: Abstraction has 2314 states and 8833 transitions. [2020-12-23 13:56:10,560 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-12-23 13:56:10,560 INFO L276 IsEmpty]: Start isEmpty. Operand 2314 states and 8833 transitions. [2020-12-23 13:56:10,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-23 13:56:10,562 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:56:10,562 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:56:10,778 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:56:10,779 INFO L429 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-23 13:56:10,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:56:10,779 INFO L82 PathProgramCache]: Analyzing trace with hash 1165401684, now seen corresponding path program 2 times [2020-12-23 13:56:10,779 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:56:10,779 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036770052] [2020-12-23 13:56:10,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:56:10,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:56:10,901 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:56:10,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036770052] [2020-12-23 13:56:10,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [280009912] [2020-12-23 13:56:10,902 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:56:11,002 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-23 13:56:11,002 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 13:56:11,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-23 13:56:11,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 13:56:11,139 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-23 13:56:11,140 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 13:56:11,140 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 14 [2020-12-23 13:56:11,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604944412] [2020-12-23 13:56:11,141 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 13:56:11,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:56:11,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 13:56:11,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2020-12-23 13:56:11,142 INFO L87 Difference]: Start difference. First operand 2314 states and 8833 transitions. Second operand 7 states. [2020-12-23 13:56:11,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:56:11,500 INFO L93 Difference]: Finished difference Result 4982 states and 16559 transitions. [2020-12-23 13:56:11,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-23 13:56:11,500 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-12-23 13:56:11,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:56:11,515 INFO L225 Difference]: With dead ends: 4982 [2020-12-23 13:56:11,516 INFO L226 Difference]: Without dead ends: 4965 [2020-12-23 13:56:11,516 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=125, Invalid=427, Unknown=0, NotChecked=0, Total=552 [2020-12-23 13:56:11,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4965 states. [2020-12-23 13:56:11,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4965 to 2231. [2020-12-23 13:56:11,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2231 states. [2020-12-23 13:56:11,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2231 states to 2231 states and 8528 transitions. [2020-12-23 13:56:11,642 INFO L78 Accepts]: Start accepts. Automaton has 2231 states and 8528 transitions. Word has length 19 [2020-12-23 13:56:11,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:56:11,643 INFO L481 AbstractCegarLoop]: Abstraction has 2231 states and 8528 transitions. [2020-12-23 13:56:11,643 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 13:56:11,643 INFO L276 IsEmpty]: Start isEmpty. Operand 2231 states and 8528 transitions. [2020-12-23 13:56:11,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-23 13:56:11,644 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:56:11,645 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:56:11,858 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:56:11,859 INFO L429 AbstractCegarLoop]: === Iteration 10 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-23 13:56:11,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:56:11,860 INFO L82 PathProgramCache]: Analyzing trace with hash 1165408318, now seen corresponding path program 2 times [2020-12-23 13:56:11,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:56:11,861 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360389568] [2020-12-23 13:56:11,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:56:11,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:56:11,971 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:56:11,971 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360389568] [2020-12-23 13:56:11,972 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [598931438] [2020-12-23 13:56:11,972 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:56:12,118 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-23 13:56:12,118 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 13:56:12,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-23 13:56:12,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 13:56:12,245 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-23 13:56:12,245 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 13:56:12,245 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 14 [2020-12-23 13:56:12,246 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008720876] [2020-12-23 13:56:12,247 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 13:56:12,247 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:56:12,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 13:56:12,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2020-12-23 13:56:12,248 INFO L87 Difference]: Start difference. First operand 2231 states and 8528 transitions. Second operand 7 states. [2020-12-23 13:56:12,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:56:12,579 INFO L93 Difference]: Finished difference Result 4772 states and 15819 transitions. [2020-12-23 13:56:12,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-23 13:56:12,579 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-12-23 13:56:12,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:56:12,590 INFO L225 Difference]: With dead ends: 4772 [2020-12-23 13:56:12,590 INFO L226 Difference]: Without dead ends: 4755 [2020-12-23 13:56:12,590 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=125, Invalid=427, Unknown=0, NotChecked=0, Total=552 [2020-12-23 13:56:12,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4755 states. [2020-12-23 13:56:12,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4755 to 2161. [2020-12-23 13:56:12,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2161 states. [2020-12-23 13:56:12,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2161 states to 2161 states and 8280 transitions. [2020-12-23 13:56:12,702 INFO L78 Accepts]: Start accepts. Automaton has 2161 states and 8280 transitions. Word has length 19 [2020-12-23 13:56:12,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:56:12,703 INFO L481 AbstractCegarLoop]: Abstraction has 2161 states and 8280 transitions. [2020-12-23 13:56:12,703 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 13:56:12,703 INFO L276 IsEmpty]: Start isEmpty. Operand 2161 states and 8280 transitions. [2020-12-23 13:56:12,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-23 13:56:12,705 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:56:12,705 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:56:12,918 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2020-12-23 13:56:12,919 INFO L429 AbstractCegarLoop]: === Iteration 11 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-23 13:56:12,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:56:12,920 INFO L82 PathProgramCache]: Analyzing trace with hash -1547991177, now seen corresponding path program 1 times [2020-12-23 13:56:12,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:56:12,920 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913267727] [2020-12-23 13:56:12,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:56:12,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:56:13,049 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:56:13,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913267727] [2020-12-23 13:56:13,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570946963] [2020-12-23 13:56:13,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:56:13,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:56:13,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-23 13:56:13,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 13:56:13,330 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:56:13,330 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 13:56:13,331 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2020-12-23 13:56:13,331 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305315735] [2020-12-23 13:56:13,331 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-12-23 13:56:13,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:56:13,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-12-23 13:56:13,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2020-12-23 13:56:13,332 INFO L87 Difference]: Start difference. First operand 2161 states and 8280 transitions. Second operand 16 states. [2020-12-23 13:56:14,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:56:14,434 INFO L93 Difference]: Finished difference Result 6115 states and 19016 transitions. [2020-12-23 13:56:14,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-23 13:56:14,435 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 21 [2020-12-23 13:56:14,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:56:14,452 INFO L225 Difference]: With dead ends: 6115 [2020-12-23 13:56:14,453 INFO L226 Difference]: Without dead ends: 6096 [2020-12-23 13:56:14,454 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 335 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=397, Invalid=1085, Unknown=0, NotChecked=0, Total=1482 [2020-12-23 13:56:14,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6096 states. [2020-12-23 13:56:14,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6096 to 2117. [2020-12-23 13:56:14,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2117 states. [2020-12-23 13:56:14,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2117 states to 2117 states and 8106 transitions. [2020-12-23 13:56:14,580 INFO L78 Accepts]: Start accepts. Automaton has 2117 states and 8106 transitions. Word has length 21 [2020-12-23 13:56:14,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:56:14,582 INFO L481 AbstractCegarLoop]: Abstraction has 2117 states and 8106 transitions. [2020-12-23 13:56:14,582 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-12-23 13:56:14,582 INFO L276 IsEmpty]: Start isEmpty. Operand 2117 states and 8106 transitions. [2020-12-23 13:56:14,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-23 13:56:14,587 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:56:14,587 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:56:14,802 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2020-12-23 13:56:14,803 INFO L429 AbstractCegarLoop]: === Iteration 12 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-23 13:56:14,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:56:14,804 INFO L82 PathProgramCache]: Analyzing trace with hash 1416324087, now seen corresponding path program 2 times [2020-12-23 13:56:14,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:56:14,804 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632631455] [2020-12-23 13:56:14,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:56:14,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:56:14,951 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-23 13:56:14,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632631455] [2020-12-23 13:56:14,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [795585322] [2020-12-23 13:56:14,951 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:56:15,065 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-23 13:56:15,066 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 13:56:15,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-23 13:56:15,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 13:56:15,261 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-23 13:56:15,265 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 13:56:15,265 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2020-12-23 13:56:15,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674260401] [2020-12-23 13:56:15,266 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-12-23 13:56:15,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:56:15,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-12-23 13:56:15,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2020-12-23 13:56:15,267 INFO L87 Difference]: Start difference. First operand 2117 states and 8106 transitions. Second operand 16 states. [2020-12-23 13:56:16,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:56:16,326 INFO L93 Difference]: Finished difference Result 5914 states and 18384 transitions. [2020-12-23 13:56:16,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-23 13:56:16,326 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 21 [2020-12-23 13:56:16,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:56:16,341 INFO L225 Difference]: With dead ends: 5914 [2020-12-23 13:56:16,341 INFO L226 Difference]: Without dead ends: 5903 [2020-12-23 13:56:16,342 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 335 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=397, Invalid=1085, Unknown=0, NotChecked=0, Total=1482 [2020-12-23 13:56:16,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5903 states. [2020-12-23 13:56:16,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5903 to 2085. [2020-12-23 13:56:16,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2085 states. [2020-12-23 13:56:16,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2085 states to 2085 states and 7975 transitions. [2020-12-23 13:56:16,445 INFO L78 Accepts]: Start accepts. Automaton has 2085 states and 7975 transitions. Word has length 21 [2020-12-23 13:56:16,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:56:16,446 INFO L481 AbstractCegarLoop]: Abstraction has 2085 states and 7975 transitions. [2020-12-23 13:56:16,446 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-12-23 13:56:16,446 INFO L276 IsEmpty]: Start isEmpty. Operand 2085 states and 7975 transitions. [2020-12-23 13:56:16,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-23 13:56:16,448 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:56:16,448 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:56:16,661 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2020-12-23 13:56:16,662 INFO L429 AbstractCegarLoop]: === Iteration 13 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-23 13:56:16,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:56:16,663 INFO L82 PathProgramCache]: Analyzing trace with hash -1549185225, now seen corresponding path program 3 times [2020-12-23 13:56:16,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:56:16,663 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233426391] [2020-12-23 13:56:16,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:56:16,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:56:16,801 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-23 13:56:16,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233426391] [2020-12-23 13:56:16,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [599254034] [2020-12-23 13:56:16,802 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:56:16,917 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-12-23 13:56:16,918 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 13:56:16,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-23 13:56:16,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 13:56:17,084 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-23 13:56:17,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 13:56:17,085 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2020-12-23 13:56:17,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004545766] [2020-12-23 13:56:17,085 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-12-23 13:56:17,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:56:17,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-12-23 13:56:17,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2020-12-23 13:56:17,086 INFO L87 Difference]: Start difference. First operand 2085 states and 7975 transitions. Second operand 16 states. [2020-12-23 13:56:18,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:56:18,098 INFO L93 Difference]: Finished difference Result 5907 states and 18375 transitions. [2020-12-23 13:56:18,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-23 13:56:18,098 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 21 [2020-12-23 13:56:18,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:56:18,117 INFO L225 Difference]: With dead ends: 5907 [2020-12-23 13:56:18,117 INFO L226 Difference]: Without dead ends: 5899 [2020-12-23 13:56:18,118 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 335 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=397, Invalid=1085, Unknown=0, NotChecked=0, Total=1482 [2020-12-23 13:56:18,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5899 states. [2020-12-23 13:56:18,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5899 to 2008. [2020-12-23 13:56:18,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2008 states. [2020-12-23 13:56:18,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2008 states to 2008 states and 7698 transitions. [2020-12-23 13:56:18,239 INFO L78 Accepts]: Start accepts. Automaton has 2008 states and 7698 transitions. Word has length 21 [2020-12-23 13:56:18,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:56:18,239 INFO L481 AbstractCegarLoop]: Abstraction has 2008 states and 7698 transitions. [2020-12-23 13:56:18,239 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-12-23 13:56:18,239 INFO L276 IsEmpty]: Start isEmpty. Operand 2008 states and 7698 transitions. [2020-12-23 13:56:18,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-23 13:56:18,241 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:56:18,241 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:56:18,455 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:56:18,456 INFO L429 AbstractCegarLoop]: === Iteration 14 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-23 13:56:18,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:56:18,457 INFO L82 PathProgramCache]: Analyzing trace with hash 2115879735, now seen corresponding path program 4 times [2020-12-23 13:56:18,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:56:18,457 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864709203] [2020-12-23 13:56:18,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:56:18,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:56:18,599 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-23 13:56:18,600 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864709203] [2020-12-23 13:56:18,600 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1425596689] [2020-12-23 13:56:18,600 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:56:18,717 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-12-23 13:56:18,718 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 13:56:18,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-23 13:56:18,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 13:56:18,884 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-23 13:56:18,884 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 13:56:18,884 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 14 [2020-12-23 13:56:18,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157878022] [2020-12-23 13:56:18,885 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-12-23 13:56:18,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:56:18,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-12-23 13:56:18,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2020-12-23 13:56:18,886 INFO L87 Difference]: Start difference. First operand 2008 states and 7698 transitions. Second operand 16 states. [2020-12-23 13:56:19,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:56:19,940 INFO L93 Difference]: Finished difference Result 5835 states and 18155 transitions. [2020-12-23 13:56:19,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-23 13:56:19,941 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 21 [2020-12-23 13:56:19,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:56:19,959 INFO L225 Difference]: With dead ends: 5835 [2020-12-23 13:56:19,959 INFO L226 Difference]: Without dead ends: 5824 [2020-12-23 13:56:19,960 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=397, Invalid=1085, Unknown=0, NotChecked=0, Total=1482 [2020-12-23 13:56:19,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5824 states. [2020-12-23 13:56:20,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5824 to 1976. [2020-12-23 13:56:20,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1976 states. [2020-12-23 13:56:20,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1976 states to 1976 states and 7567 transitions. [2020-12-23 13:56:20,154 INFO L78 Accepts]: Start accepts. Automaton has 1976 states and 7567 transitions. Word has length 21 [2020-12-23 13:56:20,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:56:20,154 INFO L481 AbstractCegarLoop]: Abstraction has 1976 states and 7567 transitions. [2020-12-23 13:56:20,154 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-12-23 13:56:20,154 INFO L276 IsEmpty]: Start isEmpty. Operand 1976 states and 7567 transitions. [2020-12-23 13:56:20,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-23 13:56:20,157 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:56:20,157 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:56:20,368 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2020-12-23 13:56:20,369 INFO L429 AbstractCegarLoop]: === Iteration 15 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-23 13:56:20,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:56:20,370 INFO L82 PathProgramCache]: Analyzing trace with hash -290678062, now seen corresponding path program 1 times [2020-12-23 13:56:20,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:56:20,371 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501190562] [2020-12-23 13:56:20,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:56:20,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:56:20,494 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:56:20,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501190562] [2020-12-23 13:56:20,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [364252092] [2020-12-23 13:56:20,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:56:20,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:56:20,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-23 13:56:20,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 13:56:20,744 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-23 13:56:20,744 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 13:56:20,745 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 11 [2020-12-23 13:56:20,745 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856522327] [2020-12-23 13:56:20,745 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 13:56:20,746 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:56:20,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 13:56:20,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-12-23 13:56:20,747 INFO L87 Difference]: Start difference. First operand 1976 states and 7567 transitions. Second operand 5 states. [2020-12-23 13:56:20,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:56:20,882 INFO L93 Difference]: Finished difference Result 3016 states and 10840 transitions. [2020-12-23 13:56:20,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 13:56:20,883 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-12-23 13:56:20,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:56:20,895 INFO L225 Difference]: With dead ends: 3016 [2020-12-23 13:56:20,895 INFO L226 Difference]: Without dead ends: 3000 [2020-12-23 13:56:20,895 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2020-12-23 13:56:20,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3000 states. [2020-12-23 13:56:20,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3000 to 2183. [2020-12-23 13:56:20,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2183 states. [2020-12-23 13:56:20,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2183 states to 2183 states and 8210 transitions. [2020-12-23 13:56:20,986 INFO L78 Accepts]: Start accepts. Automaton has 2183 states and 8210 transitions. Word has length 21 [2020-12-23 13:56:20,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:56:20,986 INFO L481 AbstractCegarLoop]: Abstraction has 2183 states and 8210 transitions. [2020-12-23 13:56:20,986 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 13:56:20,987 INFO L276 IsEmpty]: Start isEmpty. Operand 2183 states and 8210 transitions. [2020-12-23 13:56:20,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-23 13:56:20,989 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:56:20,989 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:56:21,204 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2020-12-23 13:56:21,205 INFO L429 AbstractCegarLoop]: === Iteration 16 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-23 13:56:21,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:56:21,206 INFO L82 PathProgramCache]: Analyzing trace with hash -1035436105, now seen corresponding path program 5 times [2020-12-23 13:56:21,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:56:21,206 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424279469] [2020-12-23 13:56:21,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:56:21,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:56:21,329 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-23 13:56:21,330 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424279469] [2020-12-23 13:56:21,330 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:56:21,330 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-23 13:56:21,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003548582] [2020-12-23 13:56:21,331 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 13:56:21,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:56:21,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 13:56:21,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-12-23 13:56:21,331 INFO L87 Difference]: Start difference. First operand 2183 states and 8210 transitions. Second operand 9 states. [2020-12-23 13:56:22,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:56:22,291 INFO L93 Difference]: Finished difference Result 6150 states and 19247 transitions. [2020-12-23 13:56:22,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-23 13:56:22,292 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-12-23 13:56:22,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:56:22,310 INFO L225 Difference]: With dead ends: 6150 [2020-12-23 13:56:22,310 INFO L226 Difference]: Without dead ends: 6139 [2020-12-23 13:56:22,311 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-12-23 13:56:22,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6139 states. [2020-12-23 13:56:22,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6139 to 2096. [2020-12-23 13:56:22,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2096 states. [2020-12-23 13:56:22,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2096 states to 2096 states and 7876 transitions. [2020-12-23 13:56:22,508 INFO L78 Accepts]: Start accepts. Automaton has 2096 states and 7876 transitions. Word has length 21 [2020-12-23 13:56:22,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:56:22,508 INFO L481 AbstractCegarLoop]: Abstraction has 2096 states and 7876 transitions. [2020-12-23 13:56:22,508 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 13:56:22,508 INFO L276 IsEmpty]: Start isEmpty. Operand 2096 states and 7876 transitions. [2020-12-23 13:56:22,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-23 13:56:22,510 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:56:22,510 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:56:22,510 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-12-23 13:56:22,510 INFO L429 AbstractCegarLoop]: === Iteration 17 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-23 13:56:22,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:56:22,511 INFO L82 PathProgramCache]: Analyzing trace with hash -1029067465, now seen corresponding path program 6 times [2020-12-23 13:56:22,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:56:22,511 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217183643] [2020-12-23 13:56:22,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:56:22,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:56:22,631 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-23 13:56:22,631 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217183643] [2020-12-23 13:56:22,631 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:56:22,631 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-23 13:56:22,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904272239] [2020-12-23 13:56:22,632 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 13:56:22,632 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:56:22,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 13:56:22,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-12-23 13:56:22,633 INFO L87 Difference]: Start difference. First operand 2096 states and 7876 transitions. Second operand 9 states. [2020-12-23 13:56:23,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:56:23,591 INFO L93 Difference]: Finished difference Result 6017 states and 18791 transitions. [2020-12-23 13:56:23,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-23 13:56:23,592 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-12-23 13:56:23,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:56:23,604 INFO L225 Difference]: With dead ends: 6017 [2020-12-23 13:56:23,605 INFO L226 Difference]: Without dead ends: 6002 [2020-12-23 13:56:23,605 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-12-23 13:56:23,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6002 states. [2020-12-23 13:56:23,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6002 to 1965. [2020-12-23 13:56:23,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1965 states. [2020-12-23 13:56:23,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1965 states to 1965 states and 7429 transitions. [2020-12-23 13:56:23,734 INFO L78 Accepts]: Start accepts. Automaton has 1965 states and 7429 transitions. Word has length 21 [2020-12-23 13:56:23,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:56:23,734 INFO L481 AbstractCegarLoop]: Abstraction has 1965 states and 7429 transitions. [2020-12-23 13:56:23,734 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 13:56:23,734 INFO L276 IsEmpty]: Start isEmpty. Operand 1965 states and 7429 transitions. [2020-12-23 13:56:23,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-23 13:56:23,737 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:56:23,737 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:56:23,738 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-12-23 13:56:23,738 INFO L429 AbstractCegarLoop]: === Iteration 18 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-23 13:56:23,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:56:23,738 INFO L82 PathProgramCache]: Analyzing trace with hash -425444958, now seen corresponding path program 1 times [2020-12-23 13:56:23,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:56:23,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873146329] [2020-12-23 13:56:23,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:56:23,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 13:56:23,754 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 13:56:23,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 13:56:23,791 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 13:56:23,807 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-23 13:56:23,807 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-23 13:56:23,808 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-12-23 13:56:23,808 WARN L342 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2020-12-23 13:56:23,809 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2020-12-23 13:56:23,832 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,833 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,833 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,833 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,833 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,833 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,833 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,833 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,833 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,833 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,834 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,834 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,834 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,834 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,834 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,834 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,834 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,834 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,835 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,835 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,835 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,835 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,835 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,835 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,835 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,835 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,835 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,836 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,836 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,836 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,836 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,836 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,836 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,836 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,836 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,836 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,836 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,837 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,837 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,837 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,837 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,837 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,837 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,837 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,838 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,838 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,838 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,838 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,838 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,838 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,838 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,838 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,839 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,839 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,839 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,839 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,839 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,839 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,839 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,839 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,840 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,840 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,840 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,840 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,840 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,840 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,840 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,840 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,840 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,840 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,841 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,841 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,841 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,841 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,841 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,841 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,841 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,841 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,841 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,842 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,842 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,842 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,842 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,842 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,842 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,842 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,842 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,842 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,843 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,843 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,843 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,844 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,844 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,844 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,844 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,844 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,844 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,844 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,844 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,844 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,844 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,845 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,845 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,845 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,845 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,845 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,845 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,845 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,845 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,846 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,846 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,846 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,846 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,846 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,846 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,846 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,847 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,847 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,847 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,847 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,847 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,847 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,847 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,847 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,848 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,848 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,848 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,848 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,848 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,848 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,849 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,849 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,849 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,850 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,850 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,850 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,850 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,850 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,850 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,850 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,850 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,851 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,851 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,851 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,851 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,851 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,851 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,851 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,851 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,851 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,852 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,852 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,852 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,852 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,852 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,852 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,852 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,852 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,853 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,853 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,853 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,853 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,853 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,853 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,853 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,853 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,853 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,854 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,854 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,854 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,854 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,854 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,855 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,855 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,855 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,856 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,857 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,857 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,857 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,857 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,858 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,858 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,859 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,859 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,859 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,860 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,861 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,861 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,861 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,861 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,862 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,862 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,862 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,863 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,863 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,864 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,864 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,864 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,864 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,864 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,865 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,866 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,866 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,866 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,866 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,866 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,867 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,868 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,868 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,868 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,868 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,868 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,869 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,870 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,870 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,870 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,870 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,870 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,871 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,872 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,872 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,872 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,872 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,872 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,873 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:56:23,874 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-23 13:56:23,874 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-12-23 13:56:23,876 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 13:56:23,877 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 13:56:23,877 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 13:56:23,877 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 13:56:23,877 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 13:56:23,877 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 13:56:23,877 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 13:56:23,877 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 13:56:23,879 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-23 13:56:23,879 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 146 places, 131 transitions, 352 flow [2020-12-23 13:56:23,879 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 146 places, 131 transitions, 352 flow [2020-12-23 13:56:23,879 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 146 places, 131 transitions, 352 flow [2020-12-23 13:56:23,926 INFO L129 PetriNetUnfolder]: 8/157 cut-off events. [2020-12-23 13:56:23,927 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2020-12-23 13:56:23,928 INFO L84 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 157 events. 8/157 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 257 event pairs, 0 based on Foata normal form. 0/142 useless extension candidates. Maximal degree in co-relation 184. Up to 12 conditions per place. [2020-12-23 13:56:23,933 INFO L116 LiptonReduction]: Number of co-enabled transitions 2360 [2020-12-23 13:56:26,993 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-12-23 13:56:27,191 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-12-23 13:56:27,993 WARN L197 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 82 [2020-12-23 13:56:28,127 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-12-23 13:56:28,441 WARN L197 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 82 [2020-12-23 13:56:28,573 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-12-23 13:56:28,759 WARN L197 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-12-23 13:56:28,921 WARN L197 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-12-23 13:56:29,134 WARN L197 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-12-23 13:56:29,328 WARN L197 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-12-23 13:56:29,338 INFO L131 LiptonReduction]: Checked pairs total: 3863 [2020-12-23 13:56:29,339 INFO L133 LiptonReduction]: Total number of compositions: 121 [2020-12-23 13:56:29,339 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 61 places, 39 transitions, 168 flow [2020-12-23 13:56:29,881 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 6191 states. [2020-12-23 13:56:29,881 INFO L276 IsEmpty]: Start isEmpty. Operand 6191 states. [2020-12-23 13:56:29,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-23 13:56:29,881 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:56:29,882 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-12-23 13:56:29,882 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:56:29,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:56:29,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1111243, now seen corresponding path program 1 times [2020-12-23 13:56:29,882 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:56:29,882 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891104260] [2020-12-23 13:56:29,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:56:29,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:56:29,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:56:29,904 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891104260] [2020-12-23 13:56:29,904 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:56:29,904 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-23 13:56:29,905 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431302723] [2020-12-23 13:56:29,905 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 13:56:29,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:56:29,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 13:56:29,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 13:56:29,906 INFO L87 Difference]: Start difference. First operand 6191 states. Second operand 3 states. [2020-12-23 13:56:29,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:56:29,990 INFO L93 Difference]: Finished difference Result 5844 states and 26316 transitions. [2020-12-23 13:56:29,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 13:56:29,991 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-12-23 13:56:29,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:56:30,018 INFO L225 Difference]: With dead ends: 5844 [2020-12-23 13:56:30,018 INFO L226 Difference]: Without dead ends: 5479 [2020-12-23 13:56:30,018 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 13:56:30,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5479 states. [2020-12-23 13:56:30,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5479 to 5479. [2020-12-23 13:56:30,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5479 states. [2020-12-23 13:56:30,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 24493 transitions. [2020-12-23 13:56:30,303 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 24493 transitions. Word has length 3 [2020-12-23 13:56:30,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:56:30,303 INFO L481 AbstractCegarLoop]: Abstraction has 5479 states and 24493 transitions. [2020-12-23 13:56:30,304 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 13:56:30,304 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 24493 transitions. [2020-12-23 13:56:30,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-23 13:56:30,304 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:56:30,304 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:56:30,304 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-12-23 13:56:30,304 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:56:30,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:56:30,305 INFO L82 PathProgramCache]: Analyzing trace with hash -745341310, now seen corresponding path program 1 times [2020-12-23 13:56:30,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:56:30,305 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222408253] [2020-12-23 13:56:30,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:56:30,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:56:30,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:56:30,338 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222408253] [2020-12-23 13:56:30,339 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:56:30,339 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 13:56:30,339 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842383326] [2020-12-23 13:56:30,339 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 13:56:30,339 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:56:30,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 13:56:30,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 13:56:30,340 INFO L87 Difference]: Start difference. First operand 5479 states and 24493 transitions. Second operand 5 states. [2020-12-23 13:56:30,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:56:30,536 INFO L93 Difference]: Finished difference Result 9673 states and 40333 transitions. [2020-12-23 13:56:30,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 13:56:30,537 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-12-23 13:56:30,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:56:30,588 INFO L225 Difference]: With dead ends: 9673 [2020-12-23 13:56:30,588 INFO L226 Difference]: Without dead ends: 9666 [2020-12-23 13:56:30,589 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-23 13:56:30,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9666 states. [2020-12-23 13:56:31,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9666 to 6331. [2020-12-23 13:56:31,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6331 states. [2020-12-23 13:56:31,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6331 states to 6331 states and 28544 transitions. [2020-12-23 13:56:31,203 INFO L78 Accepts]: Start accepts. Automaton has 6331 states and 28544 transitions. Word has length 9 [2020-12-23 13:56:31,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:56:31,204 INFO L481 AbstractCegarLoop]: Abstraction has 6331 states and 28544 transitions. [2020-12-23 13:56:31,204 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 13:56:31,204 INFO L276 IsEmpty]: Start isEmpty. Operand 6331 states and 28544 transitions. [2020-12-23 13:56:31,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-23 13:56:31,204 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:56:31,204 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:56:31,205 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-12-23 13:56:31,205 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:56:31,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:56:31,205 INFO L82 PathProgramCache]: Analyzing trace with hash 901725382, now seen corresponding path program 1 times [2020-12-23 13:56:31,205 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:56:31,206 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245976072] [2020-12-23 13:56:31,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:56:31,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:56:31,284 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:56:31,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245976072] [2020-12-23 13:56:31,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [96269814] [2020-12-23 13:56:31,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:56:31,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:56:31,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-23 13:56:31,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 13:56:31,554 WARN L197 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2020-12-23 13:56:31,610 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-23 13:56:31,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 13:56:31,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2020-12-23 13:56:31,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538501984] [2020-12-23 13:56:31,612 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 13:56:31,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:56:31,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 13:56:31,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-12-23 13:56:31,613 INFO L87 Difference]: Start difference. First operand 6331 states and 28544 transitions. Second operand 5 states. [2020-12-23 13:56:31,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:56:31,851 INFO L93 Difference]: Finished difference Result 11081 states and 46826 transitions. [2020-12-23 13:56:31,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 13:56:31,852 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-12-23 13:56:31,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:56:31,974 INFO L225 Difference]: With dead ends: 11081 [2020-12-23 13:56:31,974 INFO L226 Difference]: Without dead ends: 11068 [2020-12-23 13:56:31,975 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2020-12-23 13:56:32,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11068 states. [2020-12-23 13:56:32,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11068 to 7391. [2020-12-23 13:56:32,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7391 states. [2020-12-23 13:56:32,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7391 states to 7391 states and 33694 transitions. [2020-12-23 13:56:32,456 INFO L78 Accepts]: Start accepts. Automaton has 7391 states and 33694 transitions. Word has length 13 [2020-12-23 13:56:32,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:56:32,456 INFO L481 AbstractCegarLoop]: Abstraction has 7391 states and 33694 transitions. [2020-12-23 13:56:32,456 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 13:56:32,456 INFO L276 IsEmpty]: Start isEmpty. Operand 7391 states and 33694 transitions. [2020-12-23 13:56:32,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-23 13:56:32,457 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:56:32,457 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:56:32,670 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2020-12-23 13:56:32,671 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:56:32,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:56:32,672 INFO L82 PathProgramCache]: Analyzing trace with hash -1025299782, now seen corresponding path program 1 times [2020-12-23 13:56:32,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:56:32,672 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445317002] [2020-12-23 13:56:32,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:56:32,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:56:32,735 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-23 13:56:32,736 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445317002] [2020-12-23 13:56:32,736 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:56:32,736 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 13:56:32,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454441657] [2020-12-23 13:56:32,736 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 13:56:32,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:56:32,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 13:56:32,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-12-23 13:56:32,737 INFO L87 Difference]: Start difference. First operand 7391 states and 33694 transitions. Second operand 7 states. [2020-12-23 13:56:33,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:56:33,228 INFO L93 Difference]: Finished difference Result 16749 states and 66010 transitions. [2020-12-23 13:56:33,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-23 13:56:33,228 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-12-23 13:56:33,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:56:33,406 INFO L225 Difference]: With dead ends: 16749 [2020-12-23 13:56:33,407 INFO L226 Difference]: Without dead ends: 16736 [2020-12-23 13:56:33,407 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-12-23 13:56:33,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16736 states. [2020-12-23 13:56:33,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16736 to 7303. [2020-12-23 13:56:33,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7303 states. [2020-12-23 13:56:33,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7303 states to 7303 states and 33260 transitions. [2020-12-23 13:56:33,973 INFO L78 Accepts]: Start accepts. Automaton has 7303 states and 33260 transitions. Word has length 15 [2020-12-23 13:56:33,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:56:33,973 INFO L481 AbstractCegarLoop]: Abstraction has 7303 states and 33260 transitions. [2020-12-23 13:56:33,973 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 13:56:33,973 INFO L276 IsEmpty]: Start isEmpty. Operand 7303 states and 33260 transitions. [2020-12-23 13:56:33,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-23 13:56:33,973 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:56:33,973 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:56:33,974 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-12-23 13:56:33,974 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:56:33,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:56:33,975 INFO L82 PathProgramCache]: Analyzing trace with hash -1022204742, now seen corresponding path program 2 times [2020-12-23 13:56:33,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:56:33,975 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85648689] [2020-12-23 13:56:33,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:56:33,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:56:34,026 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-23 13:56:34,026 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85648689] [2020-12-23 13:56:34,026 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:56:34,026 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 13:56:34,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741962109] [2020-12-23 13:56:34,027 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 13:56:34,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:56:34,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 13:56:34,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-12-23 13:56:34,028 INFO L87 Difference]: Start difference. First operand 7303 states and 33260 transitions. Second operand 7 states. [2020-12-23 13:56:34,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:56:34,530 INFO L93 Difference]: Finished difference Result 17085 states and 67393 transitions. [2020-12-23 13:56:34,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-23 13:56:34,531 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-12-23 13:56:34,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:56:34,594 INFO L225 Difference]: With dead ends: 17085 [2020-12-23 13:56:34,594 INFO L226 Difference]: Without dead ends: 17071 [2020-12-23 13:56:34,594 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-12-23 13:56:34,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17071 states. [2020-12-23 13:56:35,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17071 to 7048. [2020-12-23 13:56:35,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7048 states. [2020-12-23 13:56:35,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7048 states to 7048 states and 32136 transitions. [2020-12-23 13:56:35,034 INFO L78 Accepts]: Start accepts. Automaton has 7048 states and 32136 transitions. Word has length 15 [2020-12-23 13:56:35,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:56:35,035 INFO L481 AbstractCegarLoop]: Abstraction has 7048 states and 32136 transitions. [2020-12-23 13:56:35,035 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 13:56:35,035 INFO L276 IsEmpty]: Start isEmpty. Operand 7048 states and 32136 transitions. [2020-12-23 13:56:35,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-23 13:56:35,035 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:56:35,035 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:56:35,036 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-12-23 13:56:35,036 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:56:35,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:56:35,036 INFO L82 PathProgramCache]: Analyzing trace with hash -1059883444, now seen corresponding path program 1 times [2020-12-23 13:56:35,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:56:35,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190952549] [2020-12-23 13:56:35,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:56:35,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:56:35,122 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:56:35,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190952549] [2020-12-23 13:56:35,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [370154717] [2020-12-23 13:56:35,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:56:35,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:56:35,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-23 13:56:35,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 13:56:35,345 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-23 13:56:35,346 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 13:56:35,346 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 10 [2020-12-23 13:56:35,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486173707] [2020-12-23 13:56:35,347 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 13:56:35,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:56:35,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 13:56:35,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-12-23 13:56:35,348 INFO L87 Difference]: Start difference. First operand 7048 states and 32136 transitions. Second operand 5 states. [2020-12-23 13:56:35,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:56:35,693 INFO L93 Difference]: Finished difference Result 12234 states and 52488 transitions. [2020-12-23 13:56:35,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 13:56:35,694 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-12-23 13:56:35,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:56:35,748 INFO L225 Difference]: With dead ends: 12234 [2020-12-23 13:56:35,749 INFO L226 Difference]: Without dead ends: 12212 [2020-12-23 13:56:35,750 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2020-12-23 13:56:35,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12212 states. [2020-12-23 13:56:36,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12212 to 8342. [2020-12-23 13:56:36,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8342 states. [2020-12-23 13:56:36,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8342 states to 8342 states and 38278 transitions. [2020-12-23 13:56:36,139 INFO L78 Accepts]: Start accepts. Automaton has 8342 states and 38278 transitions. Word has length 17 [2020-12-23 13:56:36,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:56:36,140 INFO L481 AbstractCegarLoop]: Abstraction has 8342 states and 38278 transitions. [2020-12-23 13:56:36,140 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 13:56:36,140 INFO L276 IsEmpty]: Start isEmpty. Operand 8342 states and 38278 transitions. [2020-12-23 13:56:36,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-23 13:56:36,141 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:56:36,141 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:56:36,342 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2020-12-23 13:56:36,342 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:56:36,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:56:36,343 INFO L82 PathProgramCache]: Analyzing trace with hash -658508568, now seen corresponding path program 1 times [2020-12-23 13:56:36,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:56:36,344 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589589124] [2020-12-23 13:56:36,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:56:36,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:56:36,436 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:56:36,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589589124] [2020-12-23 13:56:36,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1039585254] [2020-12-23 13:56:36,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:56:36,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:56:36,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-23 13:56:36,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 13:56:36,709 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-23 13:56:36,710 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 13:56:36,710 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 14 [2020-12-23 13:56:36,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358131803] [2020-12-23 13:56:36,711 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 13:56:36,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:56:36,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 13:56:36,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2020-12-23 13:56:36,712 INFO L87 Difference]: Start difference. First operand 8342 states and 38278 transitions. Second operand 7 states. [2020-12-23 13:56:36,873 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-12-23 13:56:37,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:56:37,380 INFO L93 Difference]: Finished difference Result 19016 states and 76191 transitions. [2020-12-23 13:56:37,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-23 13:56:37,381 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-12-23 13:56:37,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:56:37,444 INFO L225 Difference]: With dead ends: 19016 [2020-12-23 13:56:37,582 INFO L226 Difference]: Without dead ends: 18998 [2020-12-23 13:56:37,583 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2020-12-23 13:56:37,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18998 states. [2020-12-23 13:56:38,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18998 to 8452. [2020-12-23 13:56:38,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8452 states. [2020-12-23 13:56:38,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8452 states to 8452 states and 38704 transitions. [2020-12-23 13:56:38,149 INFO L78 Accepts]: Start accepts. Automaton has 8452 states and 38704 transitions. Word has length 19 [2020-12-23 13:56:38,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:56:38,149 INFO L481 AbstractCegarLoop]: Abstraction has 8452 states and 38704 transitions. [2020-12-23 13:56:38,149 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 13:56:38,149 INFO L276 IsEmpty]: Start isEmpty. Operand 8452 states and 38704 transitions. [2020-12-23 13:56:38,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-23 13:56:38,150 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:56:38,150 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:56:38,363 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2020-12-23 13:56:38,364 INFO L429 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:56:38,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:56:38,365 INFO L82 PathProgramCache]: Analyzing trace with hash -655410304, now seen corresponding path program 1 times [2020-12-23 13:56:38,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:56:38,365 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782705311] [2020-12-23 13:56:38,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:56:38,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:56:38,458 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:56:38,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782705311] [2020-12-23 13:56:38,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [709142891] [2020-12-23 13:56:38,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:56:38,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:56:38,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 12 conjunts are in the unsatisfiable core [2020-12-23 13:56:38,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 13:56:38,756 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:56:38,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 13:56:38,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2020-12-23 13:56:38,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932737852] [2020-12-23 13:56:38,757 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-12-23 13:56:38,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:56:38,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-12-23 13:56:38,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2020-12-23 13:56:38,758 INFO L87 Difference]: Start difference. First operand 8452 states and 38704 transitions. Second operand 19 states. [2020-12-23 13:56:40,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:56:40,192 INFO L93 Difference]: Finished difference Result 24179 states and 94894 transitions. [2020-12-23 13:56:40,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-12-23 13:56:40,192 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 19 [2020-12-23 13:56:40,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:56:40,254 INFO L225 Difference]: With dead ends: 24179 [2020-12-23 13:56:40,254 INFO L226 Difference]: Without dead ends: 24136 [2020-12-23 13:56:40,255 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 439 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=429, Invalid=1377, Unknown=0, NotChecked=0, Total=1806 [2020-12-23 13:56:40,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24136 states. [2020-12-23 13:56:40,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24136 to 8480. [2020-12-23 13:56:40,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8480 states. [2020-12-23 13:56:40,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8480 states to 8480 states and 38825 transitions. [2020-12-23 13:56:40,894 INFO L78 Accepts]: Start accepts. Automaton has 8480 states and 38825 transitions. Word has length 19 [2020-12-23 13:56:40,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:56:40,894 INFO L481 AbstractCegarLoop]: Abstraction has 8480 states and 38825 transitions. [2020-12-23 13:56:40,894 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-12-23 13:56:40,894 INFO L276 IsEmpty]: Start isEmpty. Operand 8480 states and 38825 transitions. [2020-12-23 13:56:40,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-23 13:56:40,896 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:56:40,896 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:56:41,109 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2020-12-23 13:56:41,110 INFO L429 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:56:41,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:56:41,111 INFO L82 PathProgramCache]: Analyzing trace with hash -640741848, now seen corresponding path program 2 times [2020-12-23 13:56:41,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:56:41,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97333059] [2020-12-23 13:56:41,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:56:41,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:56:41,216 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:56:41,216 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97333059] [2020-12-23 13:56:41,216 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1270160909] [2020-12-23 13:56:41,217 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:56:41,344 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-23 13:56:41,344 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 13:56:41,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-23 13:56:41,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 13:56:41,477 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-23 13:56:41,477 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 13:56:41,477 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 14 [2020-12-23 13:56:41,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279973058] [2020-12-23 13:56:41,478 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 13:56:41,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:56:41,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 13:56:41,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2020-12-23 13:56:41,479 INFO L87 Difference]: Start difference. First operand 8480 states and 38825 transitions. Second operand 7 states. [2020-12-23 13:56:42,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:56:42,026 INFO L93 Difference]: Finished difference Result 19852 states and 79846 transitions. [2020-12-23 13:56:42,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-23 13:56:42,027 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-12-23 13:56:42,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:56:42,270 INFO L225 Difference]: With dead ends: 19852 [2020-12-23 13:56:42,270 INFO L226 Difference]: Without dead ends: 19827 [2020-12-23 13:56:42,278 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2020-12-23 13:56:42,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19827 states. [2020-12-23 13:56:42,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19827 to 8379. [2020-12-23 13:56:42,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8379 states. [2020-12-23 13:56:42,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8379 states to 8379 states and 38406 transitions. [2020-12-23 13:56:42,863 INFO L78 Accepts]: Start accepts. Automaton has 8379 states and 38406 transitions. Word has length 19 [2020-12-23 13:56:42,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:56:42,863 INFO L481 AbstractCegarLoop]: Abstraction has 8379 states and 38406 transitions. [2020-12-23 13:56:42,864 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 13:56:42,864 INFO L276 IsEmpty]: Start isEmpty. Operand 8379 states and 38406 transitions. [2020-12-23 13:56:42,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-23 13:56:42,868 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:56:42,868 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:56:43,069 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,22 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:56:43,069 INFO L429 AbstractCegarLoop]: === Iteration 10 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:56:43,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:56:43,070 INFO L82 PathProgramCache]: Analyzing trace with hash -640738624, now seen corresponding path program 2 times [2020-12-23 13:56:43,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:56:43,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009968057] [2020-12-23 13:56:43,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:56:43,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:56:43,171 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:56:43,172 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009968057] [2020-12-23 13:56:43,172 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [472749272] [2020-12-23 13:56:43,172 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:56:43,304 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-23 13:56:43,304 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 13:56:43,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-23 13:56:43,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 13:56:43,442 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-23 13:56:43,442 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 13:56:43,442 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 14 [2020-12-23 13:56:43,442 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789405928] [2020-12-23 13:56:43,443 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 13:56:43,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:56:43,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 13:56:43,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2020-12-23 13:56:43,444 INFO L87 Difference]: Start difference. First operand 8379 states and 38406 transitions. Second operand 7 states. [2020-12-23 13:56:43,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:56:43,907 INFO L93 Difference]: Finished difference Result 19555 states and 78564 transitions. [2020-12-23 13:56:43,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-23 13:56:43,908 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-12-23 13:56:43,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:56:43,964 INFO L225 Difference]: With dead ends: 19555 [2020-12-23 13:56:43,965 INFO L226 Difference]: Without dead ends: 19530 [2020-12-23 13:56:43,965 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2020-12-23 13:56:44,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19530 states. [2020-12-23 13:56:44,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19530 to 8317. [2020-12-23 13:56:44,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8317 states. [2020-12-23 13:56:44,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8317 states to 8317 states and 38184 transitions. [2020-12-23 13:56:44,474 INFO L78 Accepts]: Start accepts. Automaton has 8317 states and 38184 transitions. Word has length 19 [2020-12-23 13:56:44,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:56:44,475 INFO L481 AbstractCegarLoop]: Abstraction has 8317 states and 38184 transitions. [2020-12-23 13:56:44,475 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 13:56:44,475 INFO L276 IsEmpty]: Start isEmpty. Operand 8317 states and 38184 transitions. [2020-12-23 13:56:44,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-23 13:56:44,476 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:56:44,476 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:56:44,676 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:56:44,677 INFO L429 AbstractCegarLoop]: === Iteration 11 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:56:44,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:56:44,678 INFO L82 PathProgramCache]: Analyzing trace with hash -775503288, now seen corresponding path program 1 times [2020-12-23 13:56:44,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:56:44,678 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143644479] [2020-12-23 13:56:44,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:56:44,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:56:44,767 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:56:44,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143644479] [2020-12-23 13:56:44,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [399863098] [2020-12-23 13:56:44,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:56:45,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:56:45,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-23 13:56:45,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 13:56:45,122 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-23 13:56:45,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 13:56:45,123 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 11 [2020-12-23 13:56:45,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174013798] [2020-12-23 13:56:45,123 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 13:56:45,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:56:45,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 13:56:45,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-12-23 13:56:45,125 INFO L87 Difference]: Start difference. First operand 8317 states and 38184 transitions. Second operand 5 states. [2020-12-23 13:56:45,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:56:45,408 INFO L93 Difference]: Finished difference Result 14141 states and 61627 transitions. [2020-12-23 13:56:45,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 13:56:45,409 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-12-23 13:56:45,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:56:45,475 INFO L225 Difference]: With dead ends: 14141 [2020-12-23 13:56:45,475 INFO L226 Difference]: Without dead ends: 14110 [2020-12-23 13:56:45,476 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2020-12-23 13:56:45,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14110 states. [2020-12-23 13:56:45,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14110 to 10049. [2020-12-23 13:56:45,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10049 states. [2020-12-23 13:56:45,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10049 states to 10049 states and 46134 transitions. [2020-12-23 13:56:45,986 INFO L78 Accepts]: Start accepts. Automaton has 10049 states and 46134 transitions. Word has length 21 [2020-12-23 13:56:45,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:56:45,986 INFO L481 AbstractCegarLoop]: Abstraction has 10049 states and 46134 transitions. [2020-12-23 13:56:45,986 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 13:56:45,987 INFO L276 IsEmpty]: Start isEmpty. Operand 10049 states and 46134 transitions. [2020-12-23 13:56:45,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-23 13:56:45,988 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:56:45,988 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:56:46,188 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2020-12-23 13:56:46,189 INFO L429 AbstractCegarLoop]: === Iteration 12 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:56:46,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:56:46,190 INFO L82 PathProgramCache]: Analyzing trace with hash -1481211108, now seen corresponding path program 1 times [2020-12-23 13:56:46,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:56:46,191 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544901971] [2020-12-23 13:56:46,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:56:46,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:56:46,268 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-23 13:56:46,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544901971] [2020-12-23 13:56:46,268 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:56:46,269 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-23 13:56:46,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079057721] [2020-12-23 13:56:46,269 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 13:56:46,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:56:46,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 13:56:46,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-12-23 13:56:46,270 INFO L87 Difference]: Start difference. First operand 10049 states and 46134 transitions. Second operand 9 states. [2020-12-23 13:56:47,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:56:47,448 INFO L93 Difference]: Finished difference Result 30333 states and 116117 transitions. [2020-12-23 13:56:47,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-23 13:56:47,448 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-12-23 13:56:47,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:56:47,545 INFO L225 Difference]: With dead ends: 30333 [2020-12-23 13:56:47,546 INFO L226 Difference]: Without dead ends: 30315 [2020-12-23 13:56:47,546 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-12-23 13:56:47,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30315 states. [2020-12-23 13:56:48,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30315 to 9884. [2020-12-23 13:56:48,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9884 states. [2020-12-23 13:56:48,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9884 states to 9884 states and 45329 transitions. [2020-12-23 13:56:48,197 INFO L78 Accepts]: Start accepts. Automaton has 9884 states and 45329 transitions. Word has length 21 [2020-12-23 13:56:48,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:56:48,197 INFO L481 AbstractCegarLoop]: Abstraction has 9884 states and 45329 transitions. [2020-12-23 13:56:48,197 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 13:56:48,197 INFO L276 IsEmpty]: Start isEmpty. Operand 9884 states and 45329 transitions. [2020-12-23 13:56:48,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-23 13:56:48,199 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:56:48,199 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:56:48,199 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2020-12-23 13:56:48,199 INFO L429 AbstractCegarLoop]: === Iteration 13 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:56:48,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:56:48,200 INFO L82 PathProgramCache]: Analyzing trace with hash -1466539428, now seen corresponding path program 2 times [2020-12-23 13:56:48,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:56:48,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68062596] [2020-12-23 13:56:48,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:56:48,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:56:48,278 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-23 13:56:48,278 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68062596] [2020-12-23 13:56:48,279 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:56:48,279 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-23 13:56:48,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994071366] [2020-12-23 13:56:48,279 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 13:56:48,279 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:56:48,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 13:56:48,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-12-23 13:56:48,280 INFO L87 Difference]: Start difference. First operand 9884 states and 45329 transitions. Second operand 9 states. [2020-12-23 13:56:49,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:56:49,446 INFO L93 Difference]: Finished difference Result 29916 states and 114355 transitions. [2020-12-23 13:56:49,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-23 13:56:49,447 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-12-23 13:56:49,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:56:49,558 INFO L225 Difference]: With dead ends: 29916 [2020-12-23 13:56:49,558 INFO L226 Difference]: Without dead ends: 29894 [2020-12-23 13:56:49,559 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-12-23 13:56:49,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29894 states. [2020-12-23 13:56:50,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29894 to 9719. [2020-12-23 13:56:50,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9719 states. [2020-12-23 13:56:50,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9719 states to 9719 states and 44527 transitions. [2020-12-23 13:56:50,316 INFO L78 Accepts]: Start accepts. Automaton has 9719 states and 44527 transitions. Word has length 21 [2020-12-23 13:56:50,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:56:50,316 INFO L481 AbstractCegarLoop]: Abstraction has 9719 states and 44527 transitions. [2020-12-23 13:56:50,316 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 13:56:50,316 INFO L276 IsEmpty]: Start isEmpty. Operand 9719 states and 44527 transitions. [2020-12-23 13:56:50,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-23 13:56:50,317 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:56:50,318 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:56:50,318 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2020-12-23 13:56:50,318 INFO L429 AbstractCegarLoop]: === Iteration 14 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:56:50,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:56:50,318 INFO L82 PathProgramCache]: Analyzing trace with hash 1493122332, now seen corresponding path program 3 times [2020-12-23 13:56:50,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:56:50,318 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158629354] [2020-12-23 13:56:50,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:56:50,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:56:50,393 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-23 13:56:50,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158629354] [2020-12-23 13:56:50,393 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:56:50,393 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-23 13:56:50,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646912928] [2020-12-23 13:56:50,394 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 13:56:50,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:56:50,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 13:56:50,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-12-23 13:56:50,395 INFO L87 Difference]: Start difference. First operand 9719 states and 44527 transitions. Second operand 9 states. [2020-12-23 13:56:51,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:56:51,620 INFO L93 Difference]: Finished difference Result 29973 states and 114573 transitions. [2020-12-23 13:56:51,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-23 13:56:51,621 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-12-23 13:56:51,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:56:51,730 INFO L225 Difference]: With dead ends: 29973 [2020-12-23 13:56:51,730 INFO L226 Difference]: Without dead ends: 29955 [2020-12-23 13:56:51,731 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-12-23 13:56:51,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29955 states. [2020-12-23 13:56:52,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29955 to 9420. [2020-12-23 13:56:52,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9420 states. [2020-12-23 13:56:52,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9420 states to 9420 states and 43170 transitions. [2020-12-23 13:56:52,417 INFO L78 Accepts]: Start accepts. Automaton has 9420 states and 43170 transitions. Word has length 21 [2020-12-23 13:56:52,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:56:52,417 INFO L481 AbstractCegarLoop]: Abstraction has 9420 states and 43170 transitions. [2020-12-23 13:56:52,418 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 13:56:52,418 INFO L276 IsEmpty]: Start isEmpty. Operand 9420 states and 43170 transitions. [2020-12-23 13:56:52,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-23 13:56:52,419 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:56:52,419 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:56:52,420 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2020-12-23 13:56:52,420 INFO L429 AbstractCegarLoop]: === Iteration 15 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:56:52,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:56:52,420 INFO L82 PathProgramCache]: Analyzing trace with hash 1510889052, now seen corresponding path program 4 times [2020-12-23 13:56:52,420 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:56:52,421 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012668502] [2020-12-23 13:56:52,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:56:52,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:56:52,499 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-23 13:56:52,499 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012668502] [2020-12-23 13:56:52,499 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:56:52,500 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-23 13:56:52,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27006852] [2020-12-23 13:56:52,500 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 13:56:52,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:56:52,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 13:56:52,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-12-23 13:56:52,501 INFO L87 Difference]: Start difference. First operand 9420 states and 43170 transitions. Second operand 9 states. [2020-12-23 13:56:53,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:56:53,635 INFO L93 Difference]: Finished difference Result 29739 states and 113643 transitions. [2020-12-23 13:56:53,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-23 13:56:53,636 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-12-23 13:56:53,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:56:53,738 INFO L225 Difference]: With dead ends: 29739 [2020-12-23 13:56:53,738 INFO L226 Difference]: Without dead ends: 29717 [2020-12-23 13:56:53,739 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-12-23 13:56:53,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29717 states. [2020-12-23 13:56:54,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29717 to 9255. [2020-12-23 13:56:54,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9255 states. [2020-12-23 13:56:54,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9255 states to 9255 states and 42368 transitions. [2020-12-23 13:56:54,505 INFO L78 Accepts]: Start accepts. Automaton has 9255 states and 42368 transitions. Word has length 21 [2020-12-23 13:56:54,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:56:54,506 INFO L481 AbstractCegarLoop]: Abstraction has 9255 states and 42368 transitions. [2020-12-23 13:56:54,506 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 13:56:54,506 INFO L276 IsEmpty]: Start isEmpty. Operand 9255 states and 42368 transitions. [2020-12-23 13:56:54,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-23 13:56:54,508 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:56:54,508 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:56:54,508 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2020-12-23 13:56:54,508 INFO L429 AbstractCegarLoop]: === Iteration 16 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:56:54,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:56:54,508 INFO L82 PathProgramCache]: Analyzing trace with hash -1572590692, now seen corresponding path program 5 times [2020-12-23 13:56:54,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:56:54,509 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590050936] [2020-12-23 13:56:54,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:56:54,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:56:54,588 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-23 13:56:54,589 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590050936] [2020-12-23 13:56:54,589 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:56:54,589 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-23 13:56:54,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932682830] [2020-12-23 13:56:54,589 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 13:56:54,590 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:56:54,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 13:56:54,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-12-23 13:56:54,591 INFO L87 Difference]: Start difference. First operand 9255 states and 42368 transitions. Second operand 9 states. [2020-12-23 13:56:55,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:56:55,870 INFO L93 Difference]: Finished difference Result 29788 states and 113841 transitions. [2020-12-23 13:56:55,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-23 13:56:55,871 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-12-23 13:56:55,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:56:55,977 INFO L225 Difference]: With dead ends: 29788 [2020-12-23 13:56:55,977 INFO L226 Difference]: Without dead ends: 29770 [2020-12-23 13:56:55,977 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-12-23 13:56:56,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29770 states. [2020-12-23 13:56:56,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29770 to 8964. [2020-12-23 13:56:56,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8964 states. [2020-12-23 13:56:56,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8964 states to 8964 states and 41031 transitions. [2020-12-23 13:56:56,674 INFO L78 Accepts]: Start accepts. Automaton has 8964 states and 41031 transitions. Word has length 21 [2020-12-23 13:56:56,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:56:56,674 INFO L481 AbstractCegarLoop]: Abstraction has 8964 states and 41031 transitions. [2020-12-23 13:56:56,674 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 13:56:56,675 INFO L276 IsEmpty]: Start isEmpty. Operand 8964 states and 41031 transitions. [2020-12-23 13:56:56,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-23 13:56:56,676 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:56:56,676 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:56:56,676 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2020-12-23 13:56:56,676 INFO L429 AbstractCegarLoop]: === Iteration 17 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:56:56,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:56:56,677 INFO L82 PathProgramCache]: Analyzing trace with hash -1569495652, now seen corresponding path program 6 times [2020-12-23 13:56:56,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:56:56,677 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557289051] [2020-12-23 13:56:56,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:56:56,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:56:56,753 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-23 13:56:56,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557289051] [2020-12-23 13:56:56,753 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:56:56,753 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-23 13:56:56,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021748170] [2020-12-23 13:56:56,754 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 13:56:56,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:56:56,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 13:56:56,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-12-23 13:56:56,755 INFO L87 Difference]: Start difference. First operand 8964 states and 41031 transitions. Second operand 9 states. [2020-12-23 13:56:57,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:56:57,846 INFO L93 Difference]: Finished difference Result 29379 states and 112099 transitions. [2020-12-23 13:56:57,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-23 13:56:57,847 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-12-23 13:56:57,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:56:57,933 INFO L225 Difference]: With dead ends: 29379 [2020-12-23 13:56:57,933 INFO L226 Difference]: Without dead ends: 29356 [2020-12-23 13:56:57,933 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-12-23 13:56:58,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29356 states. [2020-12-23 13:56:58,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29356 to 8573. [2020-12-23 13:56:58,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8573 states. [2020-12-23 13:56:58,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8573 states to 8573 states and 39353 transitions. [2020-12-23 13:56:58,761 INFO L78 Accepts]: Start accepts. Automaton has 8573 states and 39353 transitions. Word has length 21 [2020-12-23 13:56:58,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:56:58,761 INFO L481 AbstractCegarLoop]: Abstraction has 8573 states and 39353 transitions. [2020-12-23 13:56:58,761 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 13:56:58,761 INFO L276 IsEmpty]: Start isEmpty. Operand 8573 states and 39353 transitions. [2020-12-23 13:56:58,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-23 13:56:58,765 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:56:58,765 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:56:58,765 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2020-12-23 13:56:58,765 INFO L429 AbstractCegarLoop]: === Iteration 18 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:56:58,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:56:58,766 INFO L82 PathProgramCache]: Analyzing trace with hash 2048893540, now seen corresponding path program 1 times [2020-12-23 13:56:58,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:56:58,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588616177] [2020-12-23 13:56:58,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:56:58,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:56:58,879 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:56:58,880 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588616177] [2020-12-23 13:56:58,880 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [602462131] [2020-12-23 13:56:58,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:56:59,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:56:59,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-23 13:56:59,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 13:56:59,173 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2020-12-23 13:56:59,299 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-23 13:56:59,299 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 13:56:59,299 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 15 [2020-12-23 13:56:59,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407135175] [2020-12-23 13:56:59,300 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 13:56:59,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:56:59,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 13:56:59,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2020-12-23 13:56:59,301 INFO L87 Difference]: Start difference. First operand 8573 states and 39353 transitions. Second operand 7 states. [2020-12-23 13:56:59,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:56:59,789 INFO L93 Difference]: Finished difference Result 19727 states and 80274 transitions. [2020-12-23 13:56:59,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-23 13:56:59,790 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-12-23 13:56:59,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:56:59,847 INFO L225 Difference]: With dead ends: 19727 [2020-12-23 13:56:59,847 INFO L226 Difference]: Without dead ends: 19703 [2020-12-23 13:56:59,848 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2020-12-23 13:56:59,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19703 states. [2020-12-23 13:57:00,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19703 to 8847. [2020-12-23 13:57:00,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8847 states. [2020-12-23 13:57:00,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8847 states to 8847 states and 40495 transitions. [2020-12-23 13:57:00,388 INFO L78 Accepts]: Start accepts. Automaton has 8847 states and 40495 transitions. Word has length 23 [2020-12-23 13:57:00,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:57:00,388 INFO L481 AbstractCegarLoop]: Abstraction has 8847 states and 40495 transitions. [2020-12-23 13:57:00,388 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 13:57:00,388 INFO L276 IsEmpty]: Start isEmpty. Operand 8847 states and 40495 transitions. [2020-12-23 13:57:00,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-23 13:57:00,391 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:57:00,391 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:57:00,605 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:57:00,606 INFO L429 AbstractCegarLoop]: === Iteration 19 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:57:00,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:57:00,607 INFO L82 PathProgramCache]: Analyzing trace with hash 2065648420, now seen corresponding path program 2 times [2020-12-23 13:57:00,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:57:00,607 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324232511] [2020-12-23 13:57:00,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:57:00,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:57:00,714 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:57:00,714 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324232511] [2020-12-23 13:57:00,714 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [582920915] [2020-12-23 13:57:00,714 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:57:00,832 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-23 13:57:00,832 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 13:57:00,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-23 13:57:00,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 13:57:00,974 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-23 13:57:00,974 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 13:57:00,974 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 15 [2020-12-23 13:57:00,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823370046] [2020-12-23 13:57:00,976 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 13:57:00,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:57:00,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 13:57:00,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2020-12-23 13:57:00,978 INFO L87 Difference]: Start difference. First operand 8847 states and 40495 transitions. Second operand 7 states. [2020-12-23 13:57:01,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:57:01,449 INFO L93 Difference]: Finished difference Result 20209 states and 82213 transitions. [2020-12-23 13:57:01,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-23 13:57:01,450 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-12-23 13:57:01,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:57:01,510 INFO L225 Difference]: With dead ends: 20209 [2020-12-23 13:57:01,510 INFO L226 Difference]: Without dead ends: 20172 [2020-12-23 13:57:01,511 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2020-12-23 13:57:01,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20172 states. [2020-12-23 13:57:02,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20172 to 8496. [2020-12-23 13:57:02,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8496 states. [2020-12-23 13:57:02,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8496 states to 8496 states and 38896 transitions. [2020-12-23 13:57:02,053 INFO L78 Accepts]: Start accepts. Automaton has 8496 states and 38896 transitions. Word has length 23 [2020-12-23 13:57:02,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:57:02,053 INFO L481 AbstractCegarLoop]: Abstraction has 8496 states and 38896 transitions. [2020-12-23 13:57:02,053 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 13:57:02,053 INFO L276 IsEmpty]: Start isEmpty. Operand 8496 states and 38896 transitions. [2020-12-23 13:57:02,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-23 13:57:02,056 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:57:02,056 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:57:02,256 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable50 [2020-12-23 13:57:02,257 INFO L429 AbstractCegarLoop]: === Iteration 20 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:57:02,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:57:02,258 INFO L82 PathProgramCache]: Analyzing trace with hash 2065651644, now seen corresponding path program 1 times [2020-12-23 13:57:02,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:57:02,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614670099] [2020-12-23 13:57:02,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:57:02,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:57:02,366 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:57:02,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614670099] [2020-12-23 13:57:02,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1320469554] [2020-12-23 13:57:02,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:57:02,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:57:02,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-23 13:57:02,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 13:57:02,674 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-23 13:57:02,674 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 13:57:02,675 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 15 [2020-12-23 13:57:02,675 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925770888] [2020-12-23 13:57:02,675 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 13:57:02,676 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:57:02,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 13:57:02,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2020-12-23 13:57:02,677 INFO L87 Difference]: Start difference. First operand 8496 states and 38896 transitions. Second operand 7 states. [2020-12-23 13:57:03,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:57:03,339 INFO L93 Difference]: Finished difference Result 20488 states and 83323 transitions. [2020-12-23 13:57:03,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-23 13:57:03,340 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-12-23 13:57:03,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:57:03,403 INFO L225 Difference]: With dead ends: 20488 [2020-12-23 13:57:03,404 INFO L226 Difference]: Without dead ends: 20451 [2020-12-23 13:57:03,404 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2020-12-23 13:57:03,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20451 states. [2020-12-23 13:57:03,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20451 to 8768. [2020-12-23 13:57:03,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8768 states. [2020-12-23 13:57:03,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8768 states to 8768 states and 40121 transitions. [2020-12-23 13:57:03,883 INFO L78 Accepts]: Start accepts. Automaton has 8768 states and 40121 transitions. Word has length 23 [2020-12-23 13:57:03,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:57:03,883 INFO L481 AbstractCegarLoop]: Abstraction has 8768 states and 40121 transitions. [2020-12-23 13:57:03,883 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 13:57:03,883 INFO L276 IsEmpty]: Start isEmpty. Operand 8768 states and 40121 transitions. [2020-12-23 13:57:03,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-23 13:57:03,886 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:57:03,886 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:57:04,086 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,27 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:57:04,087 INFO L429 AbstractCegarLoop]: === Iteration 21 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:57:04,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:57:04,088 INFO L82 PathProgramCache]: Analyzing trace with hash 2065666927, now seen corresponding path program 1 times [2020-12-23 13:57:04,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:57:04,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870508858] [2020-12-23 13:57:04,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:57:04,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:57:04,206 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:57:04,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870508858] [2020-12-23 13:57:04,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1007957198] [2020-12-23 13:57:04,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:57:04,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:57:04,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-23 13:57:04,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 13:57:04,633 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-23 13:57:04,633 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 13:57:04,633 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 15 [2020-12-23 13:57:04,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900259890] [2020-12-23 13:57:04,634 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 13:57:04,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:57:04,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 13:57:04,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2020-12-23 13:57:04,635 INFO L87 Difference]: Start difference. First operand 8768 states and 40121 transitions. Second operand 7 states. [2020-12-23 13:57:05,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:57:05,142 INFO L93 Difference]: Finished difference Result 20313 states and 82544 transitions. [2020-12-23 13:57:05,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-23 13:57:05,143 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-12-23 13:57:05,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:57:05,206 INFO L225 Difference]: With dead ends: 20313 [2020-12-23 13:57:05,207 INFO L226 Difference]: Without dead ends: 20276 [2020-12-23 13:57:05,207 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2020-12-23 13:57:05,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20276 states. [2020-12-23 13:57:05,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20276 to 9144. [2020-12-23 13:57:05,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9144 states. [2020-12-23 13:57:05,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9144 states to 9144 states and 41753 transitions. [2020-12-23 13:57:05,767 INFO L78 Accepts]: Start accepts. Automaton has 9144 states and 41753 transitions. Word has length 23 [2020-12-23 13:57:05,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:57:05,767 INFO L481 AbstractCegarLoop]: Abstraction has 9144 states and 41753 transitions. [2020-12-23 13:57:05,767 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 13:57:05,767 INFO L276 IsEmpty]: Start isEmpty. Operand 9144 states and 41753 transitions. [2020-12-23 13:57:05,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-23 13:57:05,769 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:57:05,769 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:57:05,970 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52 [2020-12-23 13:57:05,970 INFO L429 AbstractCegarLoop]: === Iteration 22 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:57:05,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:57:05,971 INFO L82 PathProgramCache]: Analyzing trace with hash 2051991804, now seen corresponding path program 2 times [2020-12-23 13:57:05,971 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:57:05,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597239539] [2020-12-23 13:57:05,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:57:05,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:57:06,084 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:57:06,084 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597239539] [2020-12-23 13:57:06,084 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [47911309] [2020-12-23 13:57:06,084 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:57:06,197 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-23 13:57:06,197 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 13:57:06,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-23 13:57:06,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 13:57:06,336 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-23 13:57:06,336 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 13:57:06,336 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 15 [2020-12-23 13:57:06,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437114455] [2020-12-23 13:57:06,337 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 13:57:06,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:57:06,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 13:57:06,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2020-12-23 13:57:06,338 INFO L87 Difference]: Start difference. First operand 9144 states and 41753 transitions. Second operand 7 states. [2020-12-23 13:57:06,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:57:06,819 INFO L93 Difference]: Finished difference Result 20485 states and 83152 transitions. [2020-12-23 13:57:06,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-23 13:57:06,820 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-12-23 13:57:06,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:57:06,880 INFO L225 Difference]: With dead ends: 20485 [2020-12-23 13:57:06,880 INFO L226 Difference]: Without dead ends: 20457 [2020-12-23 13:57:06,881 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2020-12-23 13:57:07,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20457 states. [2020-12-23 13:57:07,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20457 to 9331. [2020-12-23 13:57:07,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9331 states. [2020-12-23 13:57:07,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9331 states to 9331 states and 42574 transitions. [2020-12-23 13:57:07,434 INFO L78 Accepts]: Start accepts. Automaton has 9331 states and 42574 transitions. Word has length 23 [2020-12-23 13:57:07,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:57:07,434 INFO L481 AbstractCegarLoop]: Abstraction has 9331 states and 42574 transitions. [2020-12-23 13:57:07,434 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 13:57:07,434 INFO L276 IsEmpty]: Start isEmpty. Operand 9331 states and 42574 transitions. [2020-12-23 13:57:07,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-23 13:57:07,436 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:57:07,436 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:57:07,636 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,29 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:57:07,637 INFO L429 AbstractCegarLoop]: === Iteration 23 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:57:07,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:57:07,638 INFO L82 PathProgramCache]: Analyzing trace with hash 2066678767, now seen corresponding path program 2 times [2020-12-23 13:57:07,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:57:07,638 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335691033] [2020-12-23 13:57:07,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:57:07,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:57:07,749 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:57:07,750 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335691033] [2020-12-23 13:57:07,750 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1958821601] [2020-12-23 13:57:07,750 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:57:07,869 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-23 13:57:07,869 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 13:57:07,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-23 13:57:07,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 13:57:08,016 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-23 13:57:08,016 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 13:57:08,016 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 15 [2020-12-23 13:57:08,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579281370] [2020-12-23 13:57:08,017 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 13:57:08,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:57:08,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 13:57:08,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2020-12-23 13:57:08,018 INFO L87 Difference]: Start difference. First operand 9331 states and 42574 transitions. Second operand 7 states. [2020-12-23 13:57:08,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:57:08,690 INFO L93 Difference]: Finished difference Result 21187 states and 86251 transitions. [2020-12-23 13:57:08,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-23 13:57:08,691 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-12-23 13:57:08,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:57:08,760 INFO L225 Difference]: With dead ends: 21187 [2020-12-23 13:57:08,760 INFO L226 Difference]: Without dead ends: 21150 [2020-12-23 13:57:08,760 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2020-12-23 13:57:08,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21150 states. [2020-12-23 13:57:09,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21150 to 9426. [2020-12-23 13:57:09,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9426 states. [2020-12-23 13:57:09,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9426 states to 9426 states and 43057 transitions. [2020-12-23 13:57:09,187 INFO L78 Accepts]: Start accepts. Automaton has 9426 states and 43057 transitions. Word has length 23 [2020-12-23 13:57:09,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:57:09,187 INFO L481 AbstractCegarLoop]: Abstraction has 9426 states and 43057 transitions. [2020-12-23 13:57:09,188 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 13:57:09,188 INFO L276 IsEmpty]: Start isEmpty. Operand 9426 states and 43057 transitions. [2020-12-23 13:57:09,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-23 13:57:09,191 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:57:09,191 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:57:09,392 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2020-12-23 13:57:09,392 INFO L429 AbstractCegarLoop]: === Iteration 24 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:57:09,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:57:09,393 INFO L82 PathProgramCache]: Analyzing trace with hash -1711227692, now seen corresponding path program 1 times [2020-12-23 13:57:09,393 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:57:09,394 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101108806] [2020-12-23 13:57:09,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:57:09,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:57:09,500 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 15 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:57:09,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101108806] [2020-12-23 13:57:09,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609572136] [2020-12-23 13:57:09,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:57:09,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:57:09,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-23 13:57:09,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 13:57:09,915 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-12-23 13:57:09,915 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 13:57:09,915 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 12 [2020-12-23 13:57:09,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092665412] [2020-12-23 13:57:09,916 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 13:57:09,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:57:09,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 13:57:09,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2020-12-23 13:57:09,917 INFO L87 Difference]: Start difference. First operand 9426 states and 43057 transitions. Second operand 5 states. [2020-12-23 13:57:10,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:57:10,131 INFO L93 Difference]: Finished difference Result 15105 states and 66484 transitions. [2020-12-23 13:57:10,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 13:57:10,132 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-12-23 13:57:10,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:57:10,177 INFO L225 Difference]: With dead ends: 15105 [2020-12-23 13:57:10,177 INFO L226 Difference]: Without dead ends: 15073 [2020-12-23 13:57:10,178 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2020-12-23 13:57:10,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15073 states. [2020-12-23 13:57:10,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15073 to 11239. [2020-12-23 13:57:10,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11239 states. [2020-12-23 13:57:10,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11239 states to 11239 states and 51146 transitions. [2020-12-23 13:57:10,521 INFO L78 Accepts]: Start accepts. Automaton has 11239 states and 51146 transitions. Word has length 25 [2020-12-23 13:57:10,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:57:10,521 INFO L481 AbstractCegarLoop]: Abstraction has 11239 states and 51146 transitions. [2020-12-23 13:57:10,521 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 13:57:10,521 INFO L276 IsEmpty]: Start isEmpty. Operand 11239 states and 51146 transitions. [2020-12-23 13:57:10,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-23 13:57:10,526 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:57:10,526 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:57:10,726 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:57:10,727 INFO L429 AbstractCegarLoop]: === Iteration 25 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:57:10,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:57:10,727 INFO L82 PathProgramCache]: Analyzing trace with hash 1891672280, now seen corresponding path program 1 times [2020-12-23 13:57:10,728 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:57:10,728 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795768997] [2020-12-23 13:57:10,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:57:10,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:57:11,026 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:57:11,026 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795768997] [2020-12-23 13:57:11,026 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440318934] [2020-12-23 13:57:11,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:57:11,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:57:11,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-23 13:57:11,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 13:57:11,358 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-23 13:57:11,358 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 13:57:11,358 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2020-12-23 13:57:11,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879061623] [2020-12-23 13:57:11,359 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 13:57:11,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:57:11,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 13:57:11,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2020-12-23 13:57:11,359 INFO L87 Difference]: Start difference. First operand 11239 states and 51146 transitions. Second operand 9 states. [2020-12-23 13:57:12,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:57:12,576 INFO L93 Difference]: Finished difference Result 33877 states and 131849 transitions. [2020-12-23 13:57:12,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-23 13:57:12,577 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-12-23 13:57:12,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:57:12,877 INFO L225 Difference]: With dead ends: 33877 [2020-12-23 13:57:12,877 INFO L226 Difference]: Without dead ends: 33851 [2020-12-23 13:57:12,877 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 440 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=446, Invalid=1446, Unknown=0, NotChecked=0, Total=1892 [2020-12-23 13:57:13,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33851 states. [2020-12-23 13:57:13,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33851 to 11265. [2020-12-23 13:57:13,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11265 states. [2020-12-23 13:57:13,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11265 states to 11265 states and 51200 transitions. [2020-12-23 13:57:13,618 INFO L78 Accepts]: Start accepts. Automaton has 11265 states and 51200 transitions. Word has length 25 [2020-12-23 13:57:13,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:57:13,618 INFO L481 AbstractCegarLoop]: Abstraction has 11265 states and 51200 transitions. [2020-12-23 13:57:13,618 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 13:57:13,619 INFO L276 IsEmpty]: Start isEmpty. Operand 11265 states and 51200 transitions. [2020-12-23 13:57:13,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-23 13:57:13,625 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:57:13,625 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:57:13,839 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2020-12-23 13:57:13,840 INFO L429 AbstractCegarLoop]: === Iteration 26 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:57:13,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:57:13,841 INFO L82 PathProgramCache]: Analyzing trace with hash 1891687563, now seen corresponding path program 1 times [2020-12-23 13:57:13,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:57:13,841 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111165582] [2020-12-23 13:57:13,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:57:13,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:57:14,001 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:57:14,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111165582] [2020-12-23 13:57:14,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [129378266] [2020-12-23 13:57:14,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:57:14,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:57:14,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-23 13:57:14,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 13:57:14,375 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-23 13:57:14,376 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 13:57:14,376 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2020-12-23 13:57:14,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324113794] [2020-12-23 13:57:14,377 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 13:57:14,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:57:14,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 13:57:14,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2020-12-23 13:57:14,378 INFO L87 Difference]: Start difference. First operand 11265 states and 51200 transitions. Second operand 9 states. [2020-12-23 13:57:15,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:57:15,644 INFO L93 Difference]: Finished difference Result 33443 states and 130105 transitions. [2020-12-23 13:57:15,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-23 13:57:15,645 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-12-23 13:57:15,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:57:15,965 INFO L225 Difference]: With dead ends: 33443 [2020-12-23 13:57:15,965 INFO L226 Difference]: Without dead ends: 33417 [2020-12-23 13:57:15,966 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 440 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=446, Invalid=1446, Unknown=0, NotChecked=0, Total=1892 [2020-12-23 13:57:16,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33417 states. [2020-12-23 13:57:16,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33417 to 11150. [2020-12-23 13:57:16,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11150 states. [2020-12-23 13:57:16,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11150 states to 11150 states and 50594 transitions. [2020-12-23 13:57:16,726 INFO L78 Accepts]: Start accepts. Automaton has 11150 states and 50594 transitions. Word has length 25 [2020-12-23 13:57:16,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:57:16,727 INFO L481 AbstractCegarLoop]: Abstraction has 11150 states and 50594 transitions. [2020-12-23 13:57:16,727 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 13:57:16,727 INFO L276 IsEmpty]: Start isEmpty. Operand 11150 states and 50594 transitions. [2020-12-23 13:57:16,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-23 13:57:16,732 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:57:16,732 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:57:16,946 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2020-12-23 13:57:16,947 INFO L429 AbstractCegarLoop]: === Iteration 27 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:57:16,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:57:16,948 INFO L82 PathProgramCache]: Analyzing trace with hash 1878012440, now seen corresponding path program 2 times [2020-12-23 13:57:16,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:57:16,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823885136] [2020-12-23 13:57:16,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:57:16,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:57:17,087 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:57:17,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823885136] [2020-12-23 13:57:17,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [509765002] [2020-12-23 13:57:17,089 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:57:17,228 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-23 13:57:17,228 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 13:57:17,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-23 13:57:17,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 13:57:17,449 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-23 13:57:17,449 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 13:57:17,449 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2020-12-23 13:57:17,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497085172] [2020-12-23 13:57:17,449 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 13:57:17,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:57:17,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 13:57:17,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2020-12-23 13:57:17,450 INFO L87 Difference]: Start difference. First operand 11150 states and 50594 transitions. Second operand 9 states. [2020-12-23 13:57:18,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:57:18,855 INFO L93 Difference]: Finished difference Result 33189 states and 128963 transitions. [2020-12-23 13:57:18,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-23 13:57:18,858 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-12-23 13:57:18,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:57:18,952 INFO L225 Difference]: With dead ends: 33189 [2020-12-23 13:57:18,952 INFO L226 Difference]: Without dead ends: 33161 [2020-12-23 13:57:18,953 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=446, Invalid=1446, Unknown=0, NotChecked=0, Total=1892 [2020-12-23 13:57:19,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33161 states. [2020-12-23 13:57:19,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33161 to 10991. [2020-12-23 13:57:19,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10991 states. [2020-12-23 13:57:19,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10991 states to 10991 states and 49794 transitions. [2020-12-23 13:57:19,643 INFO L78 Accepts]: Start accepts. Automaton has 10991 states and 49794 transitions. Word has length 25 [2020-12-23 13:57:19,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:57:19,644 INFO L481 AbstractCegarLoop]: Abstraction has 10991 states and 49794 transitions. [2020-12-23 13:57:19,644 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 13:57:19,644 INFO L276 IsEmpty]: Start isEmpty. Operand 10991 states and 49794 transitions. [2020-12-23 13:57:19,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-23 13:57:19,650 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:57:19,650 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:57:19,864 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2020-12-23 13:57:19,865 INFO L429 AbstractCegarLoop]: === Iteration 28 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:57:19,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:57:19,866 INFO L82 PathProgramCache]: Analyzing trace with hash 1892699403, now seen corresponding path program 2 times [2020-12-23 13:57:19,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:57:19,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826793803] [2020-12-23 13:57:19,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:57:19,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:57:20,007 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:57:20,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826793803] [2020-12-23 13:57:20,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1791315826] [2020-12-23 13:57:20,008 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:57:20,146 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-23 13:57:20,146 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 13:57:20,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-23 13:57:20,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 13:57:20,375 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-23 13:57:20,375 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 13:57:20,375 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2020-12-23 13:57:20,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9323245] [2020-12-23 13:57:20,376 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 13:57:20,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:57:20,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 13:57:20,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2020-12-23 13:57:20,376 INFO L87 Difference]: Start difference. First operand 10991 states and 49794 transitions. Second operand 9 states. [2020-12-23 13:57:21,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:57:21,686 INFO L93 Difference]: Finished difference Result 32647 states and 126668 transitions. [2020-12-23 13:57:21,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-23 13:57:21,687 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-12-23 13:57:21,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:57:21,997 INFO L225 Difference]: With dead ends: 32647 [2020-12-23 13:57:21,997 INFO L226 Difference]: Without dead ends: 32619 [2020-12-23 13:57:21,998 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 437 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=446, Invalid=1446, Unknown=0, NotChecked=0, Total=1892 [2020-12-23 13:57:22,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32619 states. [2020-12-23 13:57:22,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32619 to 10881. [2020-12-23 13:57:22,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10881 states. [2020-12-23 13:57:22,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10881 states to 10881 states and 49235 transitions. [2020-12-23 13:57:22,538 INFO L78 Accepts]: Start accepts. Automaton has 10881 states and 49235 transitions. Word has length 25 [2020-12-23 13:57:22,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:57:22,539 INFO L481 AbstractCegarLoop]: Abstraction has 10881 states and 49235 transitions. [2020-12-23 13:57:22,539 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 13:57:22,539 INFO L276 IsEmpty]: Start isEmpty. Operand 10881 states and 49235 transitions. [2020-12-23 13:57:22,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-23 13:57:22,543 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:57:22,543 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:57:22,743 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2020-12-23 13:57:22,744 INFO L429 AbstractCegarLoop]: === Iteration 29 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:57:22,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:57:22,745 INFO L82 PathProgramCache]: Analyzing trace with hash 813242776, now seen corresponding path program 3 times [2020-12-23 13:57:22,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:57:22,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736200291] [2020-12-23 13:57:22,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:57:22,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:57:22,998 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:57:22,999 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736200291] [2020-12-23 13:57:22,999 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305897536] [2020-12-23 13:57:22,999 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:57:23,120 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2020-12-23 13:57:23,120 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 13:57:23,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-23 13:57:23,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 13:57:23,348 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-23 13:57:23,348 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 13:57:23,348 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2020-12-23 13:57:23,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897526292] [2020-12-23 13:57:23,349 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 13:57:23,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:57:23,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 13:57:23,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2020-12-23 13:57:23,350 INFO L87 Difference]: Start difference. First operand 10881 states and 49235 transitions. Second operand 9 states. [2020-12-23 13:57:24,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:57:24,542 INFO L93 Difference]: Finished difference Result 32649 states and 126657 transitions. [2020-12-23 13:57:24,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-23 13:57:24,543 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-12-23 13:57:24,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:57:24,636 INFO L225 Difference]: With dead ends: 32649 [2020-12-23 13:57:24,636 INFO L226 Difference]: Without dead ends: 32623 [2020-12-23 13:57:24,636 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 440 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=446, Invalid=1446, Unknown=0, NotChecked=0, Total=1892 [2020-12-23 13:57:24,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32623 states. [2020-12-23 13:57:25,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32623 to 10608. [2020-12-23 13:57:25,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10608 states. [2020-12-23 13:57:25,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10608 states to 10608 states and 47948 transitions. [2020-12-23 13:57:25,350 INFO L78 Accepts]: Start accepts. Automaton has 10608 states and 47948 transitions. Word has length 25 [2020-12-23 13:57:25,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:57:25,350 INFO L481 AbstractCegarLoop]: Abstraction has 10608 states and 47948 transitions. [2020-12-23 13:57:25,350 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 13:57:25,350 INFO L276 IsEmpty]: Start isEmpty. Operand 10608 states and 47948 transitions. [2020-12-23 13:57:25,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-23 13:57:25,354 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:57:25,354 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:57:25,560 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,36 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:57:25,561 INFO L429 AbstractCegarLoop]: === Iteration 30 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:57:25,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:57:25,561 INFO L82 PathProgramCache]: Analyzing trace with hash 813258059, now seen corresponding path program 3 times [2020-12-23 13:57:25,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:57:25,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987208533] [2020-12-23 13:57:25,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:57:25,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:57:25,716 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:57:25,716 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987208533] [2020-12-23 13:57:25,716 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1825509377] [2020-12-23 13:57:25,717 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:57:25,941 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2020-12-23 13:57:25,942 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 13:57:25,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-23 13:57:25,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 13:57:26,190 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-23 13:57:26,190 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 13:57:26,190 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2020-12-23 13:57:26,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004166749] [2020-12-23 13:57:26,190 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 13:57:26,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:57:26,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 13:57:26,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2020-12-23 13:57:26,191 INFO L87 Difference]: Start difference. First operand 10608 states and 47948 transitions. Second operand 9 states. [2020-12-23 13:57:27,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:57:27,445 INFO L93 Difference]: Finished difference Result 32110 states and 124409 transitions. [2020-12-23 13:57:27,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-23 13:57:27,445 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-12-23 13:57:27,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:57:27,537 INFO L225 Difference]: With dead ends: 32110 [2020-12-23 13:57:27,537 INFO L226 Difference]: Without dead ends: 32084 [2020-12-23 13:57:27,537 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 440 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=446, Invalid=1446, Unknown=0, NotChecked=0, Total=1892 [2020-12-23 13:57:27,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32084 states. [2020-12-23 13:57:28,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32084 to 10323. [2020-12-23 13:57:28,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10323 states. [2020-12-23 13:57:28,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10323 states to 10323 states and 46617 transitions. [2020-12-23 13:57:28,224 INFO L78 Accepts]: Start accepts. Automaton has 10323 states and 46617 transitions. Word has length 25 [2020-12-23 13:57:28,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:57:28,225 INFO L481 AbstractCegarLoop]: Abstraction has 10323 states and 46617 transitions. [2020-12-23 13:57:28,225 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 13:57:28,225 INFO L276 IsEmpty]: Start isEmpty. Operand 10323 states and 46617 transitions. [2020-12-23 13:57:28,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-23 13:57:28,229 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:57:28,229 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:57:28,430 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,37 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:57:28,430 INFO L429 AbstractCegarLoop]: === Iteration 31 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:57:28,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:57:28,431 INFO L82 PathProgramCache]: Analyzing trace with hash 816337816, now seen corresponding path program 4 times [2020-12-23 13:57:28,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:57:28,432 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259137283] [2020-12-23 13:57:28,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:57:28,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:57:28,580 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:57:28,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259137283] [2020-12-23 13:57:28,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1100809029] [2020-12-23 13:57:28,581 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:57:28,707 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-12-23 13:57:28,708 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 13:57:28,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-23 13:57:28,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 13:57:29,011 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:57:29,012 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 13:57:29,012 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2020-12-23 13:57:29,012 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331967907] [2020-12-23 13:57:29,110 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-12-23 13:57:29,111 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:57:29,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-12-23 13:57:29,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=506, Unknown=0, NotChecked=0, Total=600 [2020-12-23 13:57:29,111 INFO L87 Difference]: Start difference. First operand 10323 states and 46617 transitions. Second operand 25 states. [2020-12-23 13:57:33,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:57:33,899 INFO L93 Difference]: Finished difference Result 39782 states and 150906 transitions. [2020-12-23 13:57:33,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2020-12-23 13:57:33,900 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 25 [2020-12-23 13:57:33,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:57:34,005 INFO L225 Difference]: With dead ends: 39782 [2020-12-23 13:57:34,005 INFO L226 Difference]: Without dead ends: 39725 [2020-12-23 13:57:34,006 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4606 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=2434, Invalid=10448, Unknown=0, NotChecked=0, Total=12882 [2020-12-23 13:57:34,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39725 states. [2020-12-23 13:57:34,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39725 to 10243. [2020-12-23 13:57:34,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10243 states. [2020-12-23 13:57:34,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10243 states to 10243 states and 46264 transitions. [2020-12-23 13:57:34,746 INFO L78 Accepts]: Start accepts. Automaton has 10243 states and 46264 transitions. Word has length 25 [2020-12-23 13:57:34,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:57:34,747 INFO L481 AbstractCegarLoop]: Abstraction has 10243 states and 46264 transitions. [2020-12-23 13:57:34,747 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-12-23 13:57:34,747 INFO L276 IsEmpty]: Start isEmpty. Operand 10243 states and 46264 transitions. [2020-12-23 13:57:34,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-23 13:57:34,751 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:57:34,751 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:57:34,959 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable62 [2020-12-23 13:57:34,960 INFO L429 AbstractCegarLoop]: === Iteration 32 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:57:34,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:57:34,961 INFO L82 PathProgramCache]: Analyzing trace with hash 816356323, now seen corresponding path program 1 times [2020-12-23 13:57:34,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:57:34,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841950962] [2020-12-23 13:57:34,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:57:34,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:57:35,088 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:57:35,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841950962] [2020-12-23 13:57:35,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1802147314] [2020-12-23 13:57:35,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:57:35,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:57:35,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-23 13:57:35,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 13:57:35,411 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-23 13:57:35,411 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 13:57:35,411 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2020-12-23 13:57:35,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459430614] [2020-12-23 13:57:35,413 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 13:57:35,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:57:35,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 13:57:35,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2020-12-23 13:57:35,414 INFO L87 Difference]: Start difference. First operand 10243 states and 46264 transitions. Second operand 9 states. [2020-12-23 13:57:36,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:57:36,698 INFO L93 Difference]: Finished difference Result 32141 states and 124784 transitions. [2020-12-23 13:57:36,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-23 13:57:36,699 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-12-23 13:57:36,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:57:36,787 INFO L225 Difference]: With dead ends: 32141 [2020-12-23 13:57:36,787 INFO L226 Difference]: Without dead ends: 32115 [2020-12-23 13:57:36,787 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=446, Invalid=1446, Unknown=0, NotChecked=0, Total=1892 [2020-12-23 13:57:36,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32115 states. [2020-12-23 13:57:37,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32115 to 10251. [2020-12-23 13:57:37,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10251 states. [2020-12-23 13:57:37,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10251 states to 10251 states and 46267 transitions. [2020-12-23 13:57:37,510 INFO L78 Accepts]: Start accepts. Automaton has 10251 states and 46267 transitions. Word has length 25 [2020-12-23 13:57:37,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:57:37,510 INFO L481 AbstractCegarLoop]: Abstraction has 10251 states and 46267 transitions. [2020-12-23 13:57:37,510 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 13:57:37,511 INFO L276 IsEmpty]: Start isEmpty. Operand 10251 states and 46267 transitions. [2020-12-23 13:57:37,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-23 13:57:37,515 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:57:37,515 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:57:37,715 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,39 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:57:37,716 INFO L429 AbstractCegarLoop]: === Iteration 33 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:57:37,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:57:37,716 INFO L82 PathProgramCache]: Analyzing trace with hash 831024779, now seen corresponding path program 4 times [2020-12-23 13:57:37,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:57:37,717 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625574254] [2020-12-23 13:57:37,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:57:37,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:57:37,849 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:57:37,850 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625574254] [2020-12-23 13:57:37,850 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [885047406] [2020-12-23 13:57:37,850 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:57:37,980 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-12-23 13:57:37,980 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 13:57:37,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-23 13:57:37,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 13:57:38,307 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:57:38,308 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 13:57:38,308 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2020-12-23 13:57:38,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951565631] [2020-12-23 13:57:38,308 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-12-23 13:57:38,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:57:38,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-12-23 13:57:38,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=506, Unknown=0, NotChecked=0, Total=600 [2020-12-23 13:57:38,309 INFO L87 Difference]: Start difference. First operand 10251 states and 46267 transitions. Second operand 25 states. [2020-12-23 13:57:40,031 WARN L197 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2020-12-23 13:57:43,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:57:43,276 INFO L93 Difference]: Finished difference Result 39098 states and 148134 transitions. [2020-12-23 13:57:43,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2020-12-23 13:57:43,277 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 25 [2020-12-23 13:57:43,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:57:43,439 INFO L225 Difference]: With dead ends: 39098 [2020-12-23 13:57:43,439 INFO L226 Difference]: Without dead ends: 39041 [2020-12-23 13:57:43,441 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4333 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=2354, Invalid=9856, Unknown=0, NotChecked=0, Total=12210 [2020-12-23 13:57:43,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39041 states. [2020-12-23 13:57:44,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39041 to 10299. [2020-12-23 13:57:44,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10299 states. [2020-12-23 13:57:44,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10299 states to 10299 states and 46501 transitions. [2020-12-23 13:57:44,237 INFO L78 Accepts]: Start accepts. Automaton has 10299 states and 46501 transitions. Word has length 25 [2020-12-23 13:57:44,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:57:44,238 INFO L481 AbstractCegarLoop]: Abstraction has 10299 states and 46501 transitions. [2020-12-23 13:57:44,238 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-12-23 13:57:44,238 INFO L276 IsEmpty]: Start isEmpty. Operand 10299 states and 46501 transitions. [2020-12-23 13:57:44,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-23 13:57:44,241 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:57:44,241 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:57:44,442 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,40 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:57:44,443 INFO L429 AbstractCegarLoop]: === Iteration 34 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:57:44,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:57:44,444 INFO L82 PathProgramCache]: Analyzing trace with hash 831028003, now seen corresponding path program 2 times [2020-12-23 13:57:44,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:57:44,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839448205] [2020-12-23 13:57:44,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:57:44,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:57:44,579 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:57:44,579 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839448205] [2020-12-23 13:57:44,579 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [476052409] [2020-12-23 13:57:44,579 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:57:44,695 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-23 13:57:44,696 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 13:57:44,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-23 13:57:44,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 13:57:44,917 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-23 13:57:44,917 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 13:57:44,918 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2020-12-23 13:57:44,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921279354] [2020-12-23 13:57:44,918 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 13:57:44,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:57:44,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 13:57:44,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2020-12-23 13:57:44,919 INFO L87 Difference]: Start difference. First operand 10299 states and 46501 transitions. Second operand 9 states. [2020-12-23 13:57:46,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:57:46,357 INFO L93 Difference]: Finished difference Result 31570 states and 122547 transitions. [2020-12-23 13:57:46,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-23 13:57:46,357 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-12-23 13:57:46,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:57:46,443 INFO L225 Difference]: With dead ends: 31570 [2020-12-23 13:57:46,443 INFO L226 Difference]: Without dead ends: 31537 [2020-12-23 13:57:46,443 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=446, Invalid=1446, Unknown=0, NotChecked=0, Total=1892 [2020-12-23 13:57:46,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31537 states. [2020-12-23 13:57:47,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31537 to 10244. [2020-12-23 13:57:47,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10244 states. [2020-12-23 13:57:47,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10244 states to 10244 states and 46203 transitions. [2020-12-23 13:57:47,179 INFO L78 Accepts]: Start accepts. Automaton has 10244 states and 46203 transitions. Word has length 25 [2020-12-23 13:57:47,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:57:47,179 INFO L481 AbstractCegarLoop]: Abstraction has 10244 states and 46203 transitions. [2020-12-23 13:57:47,179 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 13:57:47,179 INFO L276 IsEmpty]: Start isEmpty. Operand 10244 states and 46203 transitions. [2020-12-23 13:57:47,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-23 13:57:47,183 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:57:47,183 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:57:47,383 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,41 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:57:47,383 INFO L429 AbstractCegarLoop]: === Iteration 35 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:57:47,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:57:47,384 INFO L82 PathProgramCache]: Analyzing trace with hash 557378584, now seen corresponding path program 5 times [2020-12-23 13:57:47,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:57:47,385 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636730827] [2020-12-23 13:57:47,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:57:47,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:57:47,519 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:57:47,520 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636730827] [2020-12-23 13:57:47,520 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [828377304] [2020-12-23 13:57:47,520 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:57:47,652 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2020-12-23 13:57:47,653 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 13:57:47,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-23 13:57:47,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 13:57:47,981 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:57:47,981 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 13:57:47,981 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2020-12-23 13:57:47,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241952212] [2020-12-23 13:57:47,982 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-12-23 13:57:47,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:57:47,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-12-23 13:57:47,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=506, Unknown=0, NotChecked=0, Total=600 [2020-12-23 13:57:47,983 INFO L87 Difference]: Start difference. First operand 10244 states and 46203 transitions. Second operand 25 states. [2020-12-23 13:57:53,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:57:53,300 INFO L93 Difference]: Finished difference Result 39166 states and 148792 transitions. [2020-12-23 13:57:53,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2020-12-23 13:57:53,301 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 25 [2020-12-23 13:57:53,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:57:53,420 INFO L225 Difference]: With dead ends: 39166 [2020-12-23 13:57:53,420 INFO L226 Difference]: Without dead ends: 39120 [2020-12-23 13:57:53,422 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4774 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=2507, Invalid=10833, Unknown=0, NotChecked=0, Total=13340 [2020-12-23 13:57:53,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39120 states. [2020-12-23 13:57:54,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39120 to 10032. [2020-12-23 13:57:54,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10032 states. [2020-12-23 13:57:54,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10032 states to 10032 states and 45208 transitions. [2020-12-23 13:57:54,198 INFO L78 Accepts]: Start accepts. Automaton has 10032 states and 45208 transitions. Word has length 25 [2020-12-23 13:57:54,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:57:54,198 INFO L481 AbstractCegarLoop]: Abstraction has 10032 states and 45208 transitions. [2020-12-23 13:57:54,198 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-12-23 13:57:54,199 INFO L276 IsEmpty]: Start isEmpty. Operand 10032 states and 45208 transitions. [2020-12-23 13:57:54,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-23 13:57:54,202 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:57:54,202 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:57:54,405 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2020-12-23 13:57:54,406 INFO L429 AbstractCegarLoop]: === Iteration 36 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:57:54,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:57:54,407 INFO L82 PathProgramCache]: Analyzing trace with hash 574133464, now seen corresponding path program 6 times [2020-12-23 13:57:54,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:57:54,407 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739728760] [2020-12-23 13:57:54,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:57:54,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:57:54,571 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:57:54,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739728760] [2020-12-23 13:57:54,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945292290] [2020-12-23 13:57:54,572 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:57:54,696 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2020-12-23 13:57:54,696 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 13:57:54,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-23 13:57:54,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 13:57:54,936 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-23 13:57:54,936 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 13:57:54,936 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2020-12-23 13:57:54,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367181533] [2020-12-23 13:57:54,937 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 13:57:54,937 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:57:54,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 13:57:54,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2020-12-23 13:57:54,938 INFO L87 Difference]: Start difference. First operand 10032 states and 45208 transitions. Second operand 9 states. [2020-12-23 13:57:56,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:57:56,485 INFO L93 Difference]: Finished difference Result 31191 states and 120629 transitions. [2020-12-23 13:57:56,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-23 13:57:56,486 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-12-23 13:57:56,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:57:56,588 INFO L225 Difference]: With dead ends: 31191 [2020-12-23 13:57:56,588 INFO L226 Difference]: Without dead ends: 31163 [2020-12-23 13:57:56,589 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=446, Invalid=1446, Unknown=0, NotChecked=0, Total=1892 [2020-12-23 13:57:56,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31163 states. [2020-12-23 13:57:57,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31163 to 9737. [2020-12-23 13:57:57,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9737 states. [2020-12-23 13:57:57,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9737 states to 9737 states and 43850 transitions. [2020-12-23 13:57:57,369 INFO L78 Accepts]: Start accepts. Automaton has 9737 states and 43850 transitions. Word has length 25 [2020-12-23 13:57:57,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:57:57,369 INFO L481 AbstractCegarLoop]: Abstraction has 9737 states and 43850 transitions. [2020-12-23 13:57:57,369 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 13:57:57,369 INFO L276 IsEmpty]: Start isEmpty. Operand 9737 states and 43850 transitions. [2020-12-23 13:57:57,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-23 13:57:57,374 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:57:57,374 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:57:57,588 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,43 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:57:57,589 INFO L429 AbstractCegarLoop]: === Iteration 37 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:57:57,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:57:57,589 INFO L82 PathProgramCache]: Analyzing trace with hash 574151971, now seen corresponding path program 3 times [2020-12-23 13:57:57,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:57:57,590 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137339503] [2020-12-23 13:57:57,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:57:57,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:57:57,763 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:57:57,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137339503] [2020-12-23 13:57:57,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [794868012] [2020-12-23 13:57:57,764 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:57:57,896 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2020-12-23 13:57:57,897 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 13:57:57,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-23 13:57:57,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 13:57:58,148 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-23 13:57:58,149 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 13:57:58,149 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2020-12-23 13:57:58,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145736075] [2020-12-23 13:57:58,149 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 13:57:58,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:57:58,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 13:57:58,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2020-12-23 13:57:58,150 INFO L87 Difference]: Start difference. First operand 9737 states and 43850 transitions. Second operand 9 states. [2020-12-23 13:57:59,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:57:59,429 INFO L93 Difference]: Finished difference Result 31014 states and 120075 transitions. [2020-12-23 13:57:59,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-23 13:57:59,431 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-12-23 13:57:59,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:57:59,762 INFO L225 Difference]: With dead ends: 31014 [2020-12-23 13:57:59,762 INFO L226 Difference]: Without dead ends: 30988 [2020-12-23 13:57:59,763 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=446, Invalid=1446, Unknown=0, NotChecked=0, Total=1892 [2020-12-23 13:57:59,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30988 states. [2020-12-23 13:58:00,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30988 to 9643. [2020-12-23 13:58:00,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9643 states. [2020-12-23 13:58:00,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9643 states to 9643 states and 43388 transitions. [2020-12-23 13:58:00,284 INFO L78 Accepts]: Start accepts. Automaton has 9643 states and 43388 transitions. Word has length 25 [2020-12-23 13:58:00,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:58:00,284 INFO L481 AbstractCegarLoop]: Abstraction has 9643 states and 43388 transitions. [2020-12-23 13:58:00,284 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 13:58:00,284 INFO L276 IsEmpty]: Start isEmpty. Operand 9643 states and 43388 transitions. [2020-12-23 13:58:00,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-23 13:58:00,287 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:58:00,288 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:58:00,488 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68,44 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:58:00,488 INFO L429 AbstractCegarLoop]: === Iteration 38 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:58:00,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:58:00,489 INFO L82 PathProgramCache]: Analyzing trace with hash 575163811, now seen corresponding path program 4 times [2020-12-23 13:58:00,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:58:00,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111283934] [2020-12-23 13:58:00,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:58:00,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:58:00,660 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:58:00,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111283934] [2020-12-23 13:58:00,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1255891724] [2020-12-23 13:58:00,660 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:58:00,784 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-12-23 13:58:00,785 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 13:58:00,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-23 13:58:00,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 13:58:01,236 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:58:01,237 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 13:58:01,237 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2020-12-23 13:58:01,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508591668] [2020-12-23 13:58:01,237 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-12-23 13:58:01,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:58:01,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-12-23 13:58:01,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=506, Unknown=0, NotChecked=0, Total=600 [2020-12-23 13:58:01,238 INFO L87 Difference]: Start difference. First operand 9643 states and 43388 transitions. Second operand 25 states. [2020-12-23 13:58:06,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:58:06,523 INFO L93 Difference]: Finished difference Result 39082 states and 148557 transitions. [2020-12-23 13:58:06,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2020-12-23 13:58:06,524 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 25 [2020-12-23 13:58:06,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:58:06,629 INFO L225 Difference]: With dead ends: 39082 [2020-12-23 13:58:06,630 INFO L226 Difference]: Without dead ends: 39025 [2020-12-23 13:58:06,631 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4566 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=2442, Invalid=10440, Unknown=0, NotChecked=0, Total=12882 [2020-12-23 13:58:06,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39025 states. [2020-12-23 13:58:07,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39025 to 9531. [2020-12-23 13:58:07,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9531 states. [2020-12-23 13:58:07,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9531 states to 9531 states and 42888 transitions. [2020-12-23 13:58:07,357 INFO L78 Accepts]: Start accepts. Automaton has 9531 states and 42888 transitions. Word has length 25 [2020-12-23 13:58:07,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:58:07,357 INFO L481 AbstractCegarLoop]: Abstraction has 9531 states and 42888 transitions. [2020-12-23 13:58:07,358 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-12-23 13:58:07,358 INFO L276 IsEmpty]: Start isEmpty. Operand 9531 states and 42888 transitions. [2020-12-23 13:58:07,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-23 13:58:07,361 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:58:07,362 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:58:07,562 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2020-12-23 13:58:07,562 INFO L429 AbstractCegarLoop]: === Iteration 39 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:58:07,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:58:07,563 INFO L82 PathProgramCache]: Analyzing trace with hash 1786648139, now seen corresponding path program 5 times [2020-12-23 13:58:07,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:58:07,563 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239482652] [2020-12-23 13:58:07,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:58:07,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:58:07,755 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:58:07,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239482652] [2020-12-23 13:58:07,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [455813859] [2020-12-23 13:58:07,756 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:58:07,883 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2020-12-23 13:58:07,884 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 13:58:07,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-23 13:58:07,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 13:58:08,281 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-23 13:58:08,281 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 13:58:08,281 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2020-12-23 13:58:08,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016836548] [2020-12-23 13:58:08,282 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 13:58:08,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:58:08,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 13:58:08,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2020-12-23 13:58:08,282 INFO L87 Difference]: Start difference. First operand 9531 states and 42888 transitions. Second operand 9 states. [2020-12-23 13:58:09,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:58:09,575 INFO L93 Difference]: Finished difference Result 31114 states and 120473 transitions. [2020-12-23 13:58:09,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-23 13:58:09,576 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-12-23 13:58:09,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:58:09,664 INFO L225 Difference]: With dead ends: 31114 [2020-12-23 13:58:09,665 INFO L226 Difference]: Without dead ends: 31088 [2020-12-23 13:58:09,665 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 436 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=446, Invalid=1446, Unknown=0, NotChecked=0, Total=1892 [2020-12-23 13:58:09,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31088 states. [2020-12-23 13:58:10,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31088 to 9368. [2020-12-23 13:58:10,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9368 states. [2020-12-23 13:58:10,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9368 states to 9368 states and 42129 transitions. [2020-12-23 13:58:10,313 INFO L78 Accepts]: Start accepts. Automaton has 9368 states and 42129 transitions. Word has length 25 [2020-12-23 13:58:10,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:58:10,314 INFO L481 AbstractCegarLoop]: Abstraction has 9368 states and 42129 transitions. [2020-12-23 13:58:10,314 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 13:58:10,314 INFO L276 IsEmpty]: Start isEmpty. Operand 9368 states and 42129 transitions. [2020-12-23 13:58:10,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-23 13:58:10,317 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:58:10,317 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:58:10,517 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,46 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:58:10,518 INFO L429 AbstractCegarLoop]: === Iteration 40 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:58:10,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:58:10,519 INFO L82 PathProgramCache]: Analyzing trace with hash 1803403019, now seen corresponding path program 6 times [2020-12-23 13:58:10,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:58:10,519 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699532209] [2020-12-23 13:58:10,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:58:10,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:58:10,667 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:58:10,667 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699532209] [2020-12-23 13:58:10,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [968616616] [2020-12-23 13:58:10,668 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:58:10,790 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2020-12-23 13:58:10,790 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 13:58:10,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-23 13:58:10,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 13:58:11,025 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-23 13:58:11,025 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 13:58:11,026 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2020-12-23 13:58:11,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728841878] [2020-12-23 13:58:11,026 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 13:58:11,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:58:11,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 13:58:11,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2020-12-23 13:58:11,027 INFO L87 Difference]: Start difference. First operand 9368 states and 42129 transitions. Second operand 9 states. [2020-12-23 13:58:12,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:58:12,410 INFO L93 Difference]: Finished difference Result 30701 states and 118720 transitions. [2020-12-23 13:58:12,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-23 13:58:12,410 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-12-23 13:58:12,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:58:12,500 INFO L225 Difference]: With dead ends: 30701 [2020-12-23 13:58:12,500 INFO L226 Difference]: Without dead ends: 30668 [2020-12-23 13:58:12,500 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=446, Invalid=1446, Unknown=0, NotChecked=0, Total=1892 [2020-12-23 13:58:12,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30668 states. [2020-12-23 13:58:13,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30668 to 9053. [2020-12-23 13:58:13,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9053 states. [2020-12-23 13:58:13,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9053 states to 9053 states and 40718 transitions. [2020-12-23 13:58:13,213 INFO L78 Accepts]: Start accepts. Automaton has 9053 states and 40718 transitions. Word has length 25 [2020-12-23 13:58:13,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:58:13,214 INFO L481 AbstractCegarLoop]: Abstraction has 9053 states and 40718 transitions. [2020-12-23 13:58:13,214 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 13:58:13,214 INFO L276 IsEmpty]: Start isEmpty. Operand 9053 states and 40718 transitions. [2020-12-23 13:58:13,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-23 13:58:13,217 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:58:13,217 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:58:13,418 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable71 [2020-12-23 13:58:13,419 INFO L429 AbstractCegarLoop]: === Iteration 41 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:58:13,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:58:13,420 INFO L82 PathProgramCache]: Analyzing trace with hash 1803406243, now seen corresponding path program 5 times [2020-12-23 13:58:13,420 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:58:13,420 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677095333] [2020-12-23 13:58:13,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:58:13,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:58:13,576 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:58:13,576 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677095333] [2020-12-23 13:58:13,576 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1204903593] [2020-12-23 13:58:13,577 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:58:13,709 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2020-12-23 13:58:13,710 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 13:58:13,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-23 13:58:13,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 13:58:13,940 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-23 13:58:13,940 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 13:58:13,940 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2020-12-23 13:58:13,940 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358214980] [2020-12-23 13:58:13,941 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 13:58:13,941 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:58:13,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 13:58:13,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2020-12-23 13:58:13,941 INFO L87 Difference]: Start difference. First operand 9053 states and 40718 transitions. Second operand 9 states. [2020-12-23 13:58:15,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:58:15,411 INFO L93 Difference]: Finished difference Result 30236 states and 116809 transitions. [2020-12-23 13:58:15,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-23 13:58:15,412 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-12-23 13:58:15,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:58:15,500 INFO L225 Difference]: With dead ends: 30236 [2020-12-23 13:58:15,500 INFO L226 Difference]: Without dead ends: 30210 [2020-12-23 13:58:15,500 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 434 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=446, Invalid=1446, Unknown=0, NotChecked=0, Total=1892 [2020-12-23 13:58:15,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30210 states. [2020-12-23 13:58:15,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30210 to 8951. [2020-12-23 13:58:15,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8951 states. [2020-12-23 13:58:16,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8951 states to 8951 states and 40236 transitions. [2020-12-23 13:58:16,241 INFO L78 Accepts]: Start accepts. Automaton has 8951 states and 40236 transitions. Word has length 25 [2020-12-23 13:58:16,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:58:16,242 INFO L481 AbstractCegarLoop]: Abstraction has 8951 states and 40236 transitions. [2020-12-23 13:58:16,242 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 13:58:16,242 INFO L276 IsEmpty]: Start isEmpty. Operand 8951 states and 40236 transitions. [2020-12-23 13:58:16,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-23 13:58:16,246 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:58:16,246 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:58:16,458 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,48 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:58:16,459 INFO L429 AbstractCegarLoop]: === Iteration 42 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:58:16,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:58:16,459 INFO L82 PathProgramCache]: Analyzing trace with hash 1789746403, now seen corresponding path program 6 times [2020-12-23 13:58:16,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:58:16,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105354708] [2020-12-23 13:58:16,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:58:16,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:58:16,620 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:58:16,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105354708] [2020-12-23 13:58:16,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1989776155] [2020-12-23 13:58:16,621 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:58:16,746 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2020-12-23 13:58:16,746 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 13:58:16,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-23 13:58:16,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 13:58:16,994 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-23 13:58:16,994 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 13:58:16,994 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2020-12-23 13:58:16,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401098559] [2020-12-23 13:58:16,995 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-23 13:58:16,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:58:16,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-23 13:58:16,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2020-12-23 13:58:16,996 INFO L87 Difference]: Start difference. First operand 8951 states and 40236 transitions. Second operand 9 states. [2020-12-23 13:58:18,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:58:18,441 INFO L93 Difference]: Finished difference Result 29960 states and 115617 transitions. [2020-12-23 13:58:18,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-23 13:58:18,443 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-12-23 13:58:18,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:58:18,765 INFO L225 Difference]: With dead ends: 29960 [2020-12-23 13:58:18,765 INFO L226 Difference]: Without dead ends: 29927 [2020-12-23 13:58:18,765 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 431 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=446, Invalid=1446, Unknown=0, NotChecked=0, Total=1892 [2020-12-23 13:58:18,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29927 states. [2020-12-23 13:58:19,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29927 to 8560. [2020-12-23 13:58:19,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8560 states. [2020-12-23 13:58:19,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8560 states to 8560 states and 38495 transitions. [2020-12-23 13:58:19,216 INFO L78 Accepts]: Start accepts. Automaton has 8560 states and 38495 transitions. Word has length 25 [2020-12-23 13:58:19,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:58:19,217 INFO L481 AbstractCegarLoop]: Abstraction has 8560 states and 38495 transitions. [2020-12-23 13:58:19,217 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-23 13:58:19,217 INFO L276 IsEmpty]: Start isEmpty. Operand 8560 states and 38495 transitions. [2020-12-23 13:58:19,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-23 13:58:19,220 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:58:19,221 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:58:19,421 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,49 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:58:19,421 INFO L429 AbstractCegarLoop]: === Iteration 43 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:58:19,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:58:19,422 INFO L82 PathProgramCache]: Analyzing trace with hash -1513513479, now seen corresponding path program 1 times [2020-12-23 13:58:19,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:58:19,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939356396] [2020-12-23 13:58:19,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:58:19,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 13:58:19,434 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 13:58:19,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 13:58:19,452 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 13:58:19,462 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-23 13:58:19,462 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-23 13:58:19,462 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2020-12-23 13:58:19,463 WARN L342 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2020-12-23 13:58:19,463 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2020-12-23 13:58:19,498 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,498 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,498 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,498 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,498 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,498 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,499 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,499 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,499 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,499 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,499 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,499 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,499 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,499 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,499 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,500 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,500 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,500 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,500 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,501 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,501 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,501 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,502 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,502 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,502 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,502 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,502 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,502 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,503 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,504 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,504 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,504 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,504 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,504 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,504 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,504 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,504 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,504 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,504 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,505 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,505 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,505 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,507 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,507 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,507 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,507 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,508 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,508 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,508 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,508 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,508 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,508 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,508 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,508 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,508 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,508 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,509 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,509 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,509 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,509 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,509 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,509 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,509 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,509 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,509 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,509 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,510 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,510 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,510 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,510 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,510 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,510 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,510 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,510 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,510 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,510 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,511 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,511 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,511 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,511 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,511 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,511 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,511 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,511 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,511 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,512 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,512 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,512 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,512 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,512 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,512 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,513 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,513 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,513 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,513 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,513 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,513 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,513 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,513 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,513 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,514 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,514 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,514 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,514 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,514 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,514 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,514 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,514 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,514 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,515 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,515 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,515 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,515 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,515 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,515 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,515 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,515 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,515 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,515 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,516 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,516 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,516 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,516 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,516 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,516 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,516 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,516 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,516 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,517 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,517 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,517 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,517 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,517 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,517 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,517 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,517 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,518 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,518 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,518 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,518 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,518 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,518 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,518 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,518 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,518 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,519 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,519 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,519 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,519 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,519 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,519 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,519 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,519 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,519 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,519 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,520 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,520 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,520 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,520 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,520 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,520 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,520 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,520 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,520 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,521 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,521 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,521 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,521 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,521 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,521 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,521 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,521 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,521 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,521 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,521 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,522 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,522 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,522 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,522 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,522 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,522 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,522 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,522 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,522 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,523 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,523 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,523 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,523 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,523 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,523 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,523 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,523 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,523 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,523 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,524 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,524 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,524 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,524 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,524 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,524 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,524 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,524 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,524 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,524 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,525 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,525 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,525 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,525 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,525 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,527 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,527 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,527 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,527 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,527 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,529 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,529 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,529 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,529 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,529 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,531 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,531 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,531 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,531 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,531 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,533 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,533 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,533 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,533 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,533 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,535 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,535 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,535 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,535 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,535 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,536 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,536 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,537 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,537 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,537 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,537 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,538 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,538 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,538 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,538 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,539 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,539 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,540 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,541 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,541 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,541 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,541 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,541 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,542 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,542 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,543 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,543 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,543 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,543 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,544 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,544 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,544 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,544 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,544 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,544 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,546 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,546 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,546 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,546 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,547 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,547 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-23 13:58:19,548 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-23 13:58:19,548 INFO L253 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2020-12-23 13:58:19,548 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 13:58:19,549 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 13:58:19,549 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 13:58:19,549 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 13:58:19,549 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 13:58:19,549 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 13:58:19,549 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 13:58:19,549 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 13:58:19,551 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-23 13:58:19,551 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 166 places, 148 transitions, 416 flow [2020-12-23 13:58:19,551 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 166 places, 148 transitions, 416 flow [2020-12-23 13:58:19,551 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 166 places, 148 transitions, 416 flow [2020-12-23 13:58:19,574 INFO L129 PetriNetUnfolder]: 9/178 cut-off events. [2020-12-23 13:58:19,574 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2020-12-23 13:58:19,575 INFO L84 FinitePrefix]: Finished finitePrefix Result has 226 conditions, 178 events. 9/178 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 291 event pairs, 0 based on Foata normal form. 0/161 useless extension candidates. Maximal degree in co-relation 213. Up to 14 conditions per place. [2020-12-23 13:58:19,581 INFO L116 LiptonReduction]: Number of co-enabled transitions 2940 [2020-12-23 13:58:20,256 WARN L197 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2020-12-23 13:58:23,988 WARN L197 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-12-23 13:58:24,184 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-12-23 13:58:25,377 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-12-23 13:58:25,488 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-12-23 13:58:25,610 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-12-23 13:58:26,090 WARN L197 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 107 [2020-12-23 13:58:26,288 WARN L197 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-12-23 13:58:26,796 WARN L197 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 110 [2020-12-23 13:58:27,017 WARN L197 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-12-23 13:58:27,022 INFO L131 LiptonReduction]: Checked pairs total: 5258 [2020-12-23 13:58:27,022 INFO L133 LiptonReduction]: Total number of compositions: 135 [2020-12-23 13:58:27,023 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 71 places, 45 transitions, 210 flow [2020-12-23 13:58:28,877 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 18584 states. [2020-12-23 13:58:28,877 INFO L276 IsEmpty]: Start isEmpty. Operand 18584 states. [2020-12-23 13:58:28,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-23 13:58:28,878 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:58:28,878 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-12-23 13:58:28,878 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:58:28,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:58:28,878 INFO L82 PathProgramCache]: Analyzing trace with hash 1408665, now seen corresponding path program 1 times [2020-12-23 13:58:28,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:58:28,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690641880] [2020-12-23 13:58:28,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:58:28,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:58:28,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:58:28,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690641880] [2020-12-23 13:58:28,898 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:58:28,898 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-23 13:58:28,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701922648] [2020-12-23 13:58:28,898 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 13:58:28,899 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:58:28,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 13:58:28,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 13:58:28,899 INFO L87 Difference]: Start difference. First operand 18584 states. Second operand 3 states. [2020-12-23 13:58:29,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:58:29,081 INFO L93 Difference]: Finished difference Result 17885 states and 92755 transitions. [2020-12-23 13:58:29,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 13:58:29,082 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-12-23 13:58:29,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:58:29,146 INFO L225 Difference]: With dead ends: 17885 [2020-12-23 13:58:29,147 INFO L226 Difference]: Without dead ends: 16791 [2020-12-23 13:58:29,147 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 13:58:29,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16791 states. [2020-12-23 13:58:30,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16791 to 16791. [2020-12-23 13:58:30,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16791 states. [2020-12-23 13:58:30,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16791 states to 16791 states and 86558 transitions. [2020-12-23 13:58:30,172 INFO L78 Accepts]: Start accepts. Automaton has 16791 states and 86558 transitions. Word has length 3 [2020-12-23 13:58:30,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:58:30,172 INFO L481 AbstractCegarLoop]: Abstraction has 16791 states and 86558 transitions. [2020-12-23 13:58:30,172 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 13:58:30,172 INFO L276 IsEmpty]: Start isEmpty. Operand 16791 states and 86558 transitions. [2020-12-23 13:58:30,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-23 13:58:30,173 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:58:30,173 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:58:30,173 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2020-12-23 13:58:30,173 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:58:30,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:58:30,173 INFO L82 PathProgramCache]: Analyzing trace with hash -1428828959, now seen corresponding path program 1 times [2020-12-23 13:58:30,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:58:30,174 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412337162] [2020-12-23 13:58:30,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:58:30,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:58:30,433 WARN L197 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2020-12-23 13:58:30,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:58:30,450 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412337162] [2020-12-23 13:58:30,450 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:58:30,450 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 13:58:30,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015410374] [2020-12-23 13:58:30,451 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 13:58:30,451 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:58:30,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 13:58:30,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-23 13:58:30,451 INFO L87 Difference]: Start difference. First operand 16791 states and 86558 transitions. Second operand 5 states. [2020-12-23 13:58:30,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:58:30,848 INFO L93 Difference]: Finished difference Result 30985 states and 150574 transitions. [2020-12-23 13:58:30,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 13:58:30,849 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-12-23 13:58:30,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:58:30,964 INFO L225 Difference]: With dead ends: 30985 [2020-12-23 13:58:30,964 INFO L226 Difference]: Without dead ends: 30977 [2020-12-23 13:58:30,964 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-23 13:58:31,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30977 states. [2020-12-23 13:58:32,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30977 to 19868. [2020-12-23 13:58:32,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19868 states. [2020-12-23 13:58:32,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19868 states to 19868 states and 103363 transitions. [2020-12-23 13:58:32,768 INFO L78 Accepts]: Start accepts. Automaton has 19868 states and 103363 transitions. Word has length 9 [2020-12-23 13:58:32,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:58:32,769 INFO L481 AbstractCegarLoop]: Abstraction has 19868 states and 103363 transitions. [2020-12-23 13:58:32,769 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 13:58:32,769 INFO L276 IsEmpty]: Start isEmpty. Operand 19868 states and 103363 transitions. [2020-12-23 13:58:32,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-23 13:58:32,769 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:58:32,769 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:58:32,769 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2020-12-23 13:58:32,770 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:58:32,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:58:32,770 INFO L82 PathProgramCache]: Analyzing trace with hash -1436873082, now seen corresponding path program 1 times [2020-12-23 13:58:32,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:58:32,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802711231] [2020-12-23 13:58:32,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:58:32,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:58:32,872 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:58:32,873 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802711231] [2020-12-23 13:58:32,873 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1748565351] [2020-12-23 13:58:32,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:58:33,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:58:33,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-23 13:58:33,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 13:58:33,116 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-23 13:58:33,117 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 13:58:33,117 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2020-12-23 13:58:33,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975984810] [2020-12-23 13:58:33,120 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 13:58:33,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:58:33,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 13:58:33,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-12-23 13:58:33,121 INFO L87 Difference]: Start difference. First operand 19868 states and 103363 transitions. Second operand 5 states. [2020-12-23 13:58:33,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:58:33,951 INFO L93 Difference]: Finished difference Result 36296 states and 178836 transitions. [2020-12-23 13:58:33,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 13:58:33,955 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-12-23 13:58:33,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:58:34,308 INFO L225 Difference]: With dead ends: 36296 [2020-12-23 13:58:34,309 INFO L226 Difference]: Without dead ends: 36280 [2020-12-23 13:58:34,309 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-12-23 13:58:34,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36280 states. [2020-12-23 13:58:35,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36280 to 23806. [2020-12-23 13:58:35,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23806 states. [2020-12-23 13:58:36,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23806 states to 23806 states and 125455 transitions. [2020-12-23 13:58:36,222 INFO L78 Accepts]: Start accepts. Automaton has 23806 states and 125455 transitions. Word has length 13 [2020-12-23 13:58:36,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:58:36,222 INFO L481 AbstractCegarLoop]: Abstraction has 23806 states and 125455 transitions. [2020-12-23 13:58:36,222 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 13:58:36,222 INFO L276 IsEmpty]: Start isEmpty. Operand 23806 states and 125455 transitions. [2020-12-23 13:58:36,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-23 13:58:36,223 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:58:36,223 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:58:36,438 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable77 [2020-12-23 13:58:36,438 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:58:36,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:58:36,439 INFO L82 PathProgramCache]: Analyzing trace with hash -121904858, now seen corresponding path program 1 times [2020-12-23 13:58:36,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:58:36,439 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488549691] [2020-12-23 13:58:36,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:58:36,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:58:36,549 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-23 13:58:36,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488549691] [2020-12-23 13:58:36,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1235825562] [2020-12-23 13:58:36,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 51 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:58:36,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:58:36,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-23 13:58:36,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 13:58:36,831 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-23 13:58:36,832 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 13:58:36,832 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2020-12-23 13:58:36,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571563705] [2020-12-23 13:58:36,832 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-23 13:58:36,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:58:36,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-23 13:58:36,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-12-23 13:58:36,833 INFO L87 Difference]: Start difference. First operand 23806 states and 125455 transitions. Second operand 12 states. [2020-12-23 13:58:38,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:58:38,228 INFO L93 Difference]: Finished difference Result 56720 states and 262685 transitions. [2020-12-23 13:58:38,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-23 13:58:38,229 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 15 [2020-12-23 13:58:38,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:58:38,494 INFO L225 Difference]: With dead ends: 56720 [2020-12-23 13:58:38,494 INFO L226 Difference]: Without dead ends: 56704 [2020-12-23 13:58:38,494 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2020-12-23 13:58:39,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56704 states. [2020-12-23 13:58:40,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56704 to 23629. [2020-12-23 13:58:40,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23629 states. [2020-12-23 13:58:40,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23629 states to 23629 states and 124418 transitions. [2020-12-23 13:58:40,525 INFO L78 Accepts]: Start accepts. Automaton has 23629 states and 124418 transitions. Word has length 15 [2020-12-23 13:58:40,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:58:40,525 INFO L481 AbstractCegarLoop]: Abstraction has 23629 states and 124418 transitions. [2020-12-23 13:58:40,525 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-23 13:58:40,525 INFO L276 IsEmpty]: Start isEmpty. Operand 23629 states and 124418 transitions. [2020-12-23 13:58:40,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-23 13:58:40,526 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:58:40,526 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:58:40,732 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78,51 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:58:40,733 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:58:40,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:58:40,733 INFO L82 PathProgramCache]: Analyzing trace with hash 2144442278, now seen corresponding path program 2 times [2020-12-23 13:58:40,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:58:40,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321230956] [2020-12-23 13:58:40,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:58:40,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:58:40,815 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-23 13:58:40,816 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321230956] [2020-12-23 13:58:40,816 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 13:58:40,816 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 13:58:40,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511813972] [2020-12-23 13:58:40,816 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 13:58:40,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:58:40,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 13:58:40,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-12-23 13:58:40,817 INFO L87 Difference]: Start difference. First operand 23629 states and 124418 transitions. Second operand 7 states. [2020-12-23 13:58:42,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:58:42,033 INFO L93 Difference]: Finished difference Result 58078 states and 269185 transitions. [2020-12-23 13:58:42,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-23 13:58:42,034 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-12-23 13:58:42,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:58:42,287 INFO L225 Difference]: With dead ends: 58078 [2020-12-23 13:58:42,287 INFO L226 Difference]: Without dead ends: 58061 [2020-12-23 13:58:42,287 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-12-23 13:58:43,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58061 states. [2020-12-23 13:58:44,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58061 to 23109. [2020-12-23 13:58:44,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23109 states. [2020-12-23 13:58:44,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23109 states to 23109 states and 121651 transitions. [2020-12-23 13:58:44,528 INFO L78 Accepts]: Start accepts. Automaton has 23109 states and 121651 transitions. Word has length 15 [2020-12-23 13:58:44,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:58:44,528 INFO L481 AbstractCegarLoop]: Abstraction has 23109 states and 121651 transitions. [2020-12-23 13:58:44,528 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 13:58:44,528 INFO L276 IsEmpty]: Start isEmpty. Operand 23109 states and 121651 transitions. [2020-12-23 13:58:44,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-23 13:58:44,528 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:58:44,528 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:58:44,529 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2020-12-23 13:58:44,529 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:58:44,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:58:44,529 INFO L82 PathProgramCache]: Analyzing trace with hash 631312444, now seen corresponding path program 1 times [2020-12-23 13:58:44,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:58:44,529 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387074256] [2020-12-23 13:58:44,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:58:44,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:58:44,619 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:58:44,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387074256] [2020-12-23 13:58:44,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1660787595] [2020-12-23 13:58:44,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:58:45,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:58:45,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-23 13:58:45,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 13:58:45,118 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-23 13:58:45,118 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 13:58:45,119 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 10 [2020-12-23 13:58:45,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188535515] [2020-12-23 13:58:45,119 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 13:58:45,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:58:45,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 13:58:45,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-12-23 13:58:45,120 INFO L87 Difference]: Start difference. First operand 23109 states and 121651 transitions. Second operand 5 states. [2020-12-23 13:58:45,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:58:45,539 INFO L93 Difference]: Finished difference Result 41885 states and 209629 transitions. [2020-12-23 13:58:45,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 13:58:45,540 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-12-23 13:58:45,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:58:45,689 INFO L225 Difference]: With dead ends: 41885 [2020-12-23 13:58:45,689 INFO L226 Difference]: Without dead ends: 41856 [2020-12-23 13:58:45,689 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2020-12-23 13:58:46,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41856 states. [2020-12-23 13:58:47,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41856 to 28237. [2020-12-23 13:58:47,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28237 states. [2020-12-23 13:58:47,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28237 states to 28237 states and 150261 transitions. [2020-12-23 13:58:47,777 INFO L78 Accepts]: Start accepts. Automaton has 28237 states and 150261 transitions. Word has length 17 [2020-12-23 13:58:47,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:58:47,777 INFO L481 AbstractCegarLoop]: Abstraction has 28237 states and 150261 transitions. [2020-12-23 13:58:47,777 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 13:58:47,777 INFO L276 IsEmpty]: Start isEmpty. Operand 28237 states and 150261 transitions. [2020-12-23 13:58:47,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-23 13:58:47,778 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:58:47,778 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:58:47,978 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,52 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:58:47,979 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:58:47,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:58:47,980 INFO L82 PathProgramCache]: Analyzing trace with hash -602434852, now seen corresponding path program 1 times [2020-12-23 13:58:47,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:58:47,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664937835] [2020-12-23 13:58:47,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:58:47,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:58:48,085 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:58:48,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664937835] [2020-12-23 13:58:48,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [71142567] [2020-12-23 13:58:48,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 53 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 53 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:58:48,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:58:48,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 12 conjunts are in the unsatisfiable core [2020-12-23 13:58:48,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 13:58:48,796 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:58:48,796 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 13:58:48,797 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 18 [2020-12-23 13:58:48,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370677970] [2020-12-23 13:58:48,798 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-12-23 13:58:48,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:58:48,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-12-23 13:58:48,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2020-12-23 13:58:48,799 INFO L87 Difference]: Start difference. First operand 28237 states and 150261 transitions. Second operand 20 states. [2020-12-23 13:58:51,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:58:51,730 INFO L93 Difference]: Finished difference Result 105306 states and 486919 transitions. [2020-12-23 13:58:51,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-12-23 13:58:51,730 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 19 [2020-12-23 13:58:51,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:58:52,620 INFO L225 Difference]: With dead ends: 105306 [2020-12-23 13:58:52,620 INFO L226 Difference]: Without dead ends: 105282 [2020-12-23 13:58:52,620 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 611 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=500, Invalid=1756, Unknown=0, NotChecked=0, Total=2256 [2020-12-23 13:58:54,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105282 states. [2020-12-23 13:58:55,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105282 to 29810. [2020-12-23 13:58:55,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29810 states. [2020-12-23 13:58:56,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29810 states to 29810 states and 159322 transitions. [2020-12-23 13:58:56,111 INFO L78 Accepts]: Start accepts. Automaton has 29810 states and 159322 transitions. Word has length 19 [2020-12-23 13:58:56,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:58:56,111 INFO L481 AbstractCegarLoop]: Abstraction has 29810 states and 159322 transitions. [2020-12-23 13:58:56,111 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-12-23 13:58:56,111 INFO L276 IsEmpty]: Start isEmpty. Operand 29810 states and 159322 transitions. [2020-12-23 13:58:56,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-23 13:58:56,112 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:58:56,112 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:58:56,312 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,53 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:58:56,313 INFO L429 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:58:56,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:58:56,314 INFO L82 PathProgramCache]: Analyzing trace with hash 1111858202, now seen corresponding path program 1 times [2020-12-23 13:58:56,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:58:56,314 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44190384] [2020-12-23 13:58:56,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:58:56,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:58:56,427 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:58:56,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44190384] [2020-12-23 13:58:56,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1703648278] [2020-12-23 13:58:56,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 54 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 54 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:58:56,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:58:56,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 12 conjunts are in the unsatisfiable core [2020-12-23 13:58:56,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 13:58:56,777 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:58:56,778 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 13:58:56,778 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 18 [2020-12-23 13:58:56,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071170246] [2020-12-23 13:58:56,780 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-12-23 13:58:56,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:58:56,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-12-23 13:58:56,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2020-12-23 13:58:56,781 INFO L87 Difference]: Start difference. First operand 29810 states and 159322 transitions. Second operand 20 states. [2020-12-23 13:58:58,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:58:58,675 INFO L93 Difference]: Finished difference Result 82351 states and 385147 transitions. [2020-12-23 13:58:58,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-12-23 13:58:58,676 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 19 [2020-12-23 13:58:58,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:58:59,477 INFO L225 Difference]: With dead ends: 82351 [2020-12-23 13:58:59,477 INFO L226 Difference]: Without dead ends: 82326 [2020-12-23 13:58:59,477 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=282, Invalid=908, Unknown=0, NotChecked=0, Total=1190 [2020-12-23 13:59:00,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82326 states. [2020-12-23 13:59:01,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82326 to 30333. [2020-12-23 13:59:01,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30333 states. [2020-12-23 13:59:02,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30333 states to 30333 states and 162102 transitions. [2020-12-23 13:59:02,121 INFO L78 Accepts]: Start accepts. Automaton has 30333 states and 162102 transitions. Word has length 19 [2020-12-23 13:59:02,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:59:02,121 INFO L481 AbstractCegarLoop]: Abstraction has 30333 states and 162102 transitions. [2020-12-23 13:59:02,121 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-12-23 13:59:02,121 INFO L276 IsEmpty]: Start isEmpty. Operand 30333 states and 162102 transitions. [2020-12-23 13:59:02,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-23 13:59:02,122 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:59:02,122 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:59:02,322 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable82 [2020-12-23 13:59:02,323 INFO L429 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:59:02,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:59:02,323 INFO L82 PathProgramCache]: Analyzing trace with hash 1100874716, now seen corresponding path program 2 times [2020-12-23 13:59:02,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:59:02,324 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349070899] [2020-12-23 13:59:02,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:59:02,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:59:02,429 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:59:02,429 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349070899] [2020-12-23 13:59:02,429 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [235770856] [2020-12-23 13:59:02,429 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 55 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 55 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:59:03,003 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-23 13:59:03,003 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 13:59:03,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-23 13:59:03,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 13:59:03,133 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-23 13:59:03,133 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 13:59:03,133 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 14 [2020-12-23 13:59:03,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040604299] [2020-12-23 13:59:03,134 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 13:59:03,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:59:03,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 13:59:03,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2020-12-23 13:59:03,135 INFO L87 Difference]: Start difference. First operand 30333 states and 162102 transitions. Second operand 7 states. [2020-12-23 13:59:04,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 13:59:04,580 INFO L93 Difference]: Finished difference Result 72872 states and 346972 transitions. [2020-12-23 13:59:04,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-23 13:59:04,580 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-12-23 13:59:04,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 13:59:04,945 INFO L225 Difference]: With dead ends: 72872 [2020-12-23 13:59:04,945 INFO L226 Difference]: Without dead ends: 72839 [2020-12-23 13:59:04,945 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=125, Invalid=427, Unknown=0, NotChecked=0, Total=552 [2020-12-23 13:59:06,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72839 states. [2020-12-23 13:59:07,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72839 to 30817. [2020-12-23 13:59:07,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30817 states. [2020-12-23 13:59:07,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30817 states to 30817 states and 164781 transitions. [2020-12-23 13:59:07,814 INFO L78 Accepts]: Start accepts. Automaton has 30817 states and 164781 transitions. Word has length 19 [2020-12-23 13:59:07,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 13:59:07,815 INFO L481 AbstractCegarLoop]: Abstraction has 30817 states and 164781 transitions. [2020-12-23 13:59:07,815 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 13:59:07,815 INFO L276 IsEmpty]: Start isEmpty. Operand 30817 states and 164781 transitions. [2020-12-23 13:59:07,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-23 13:59:07,816 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 13:59:07,816 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 13:59:08,024 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83,55 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:59:08,024 INFO L429 AbstractCegarLoop]: === Iteration 10 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 13:59:08,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 13:59:08,025 INFO L82 PathProgramCache]: Analyzing trace with hash 1100906522, now seen corresponding path program 2 times [2020-12-23 13:59:08,025 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 13:59:08,025 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870190156] [2020-12-23 13:59:08,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 13:59:08,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 13:59:08,128 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 13:59:08,128 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870190156] [2020-12-23 13:59:08,128 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2135850255] [2020-12-23 13:59:08,129 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 56 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 56 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 13:59:08,290 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-23 13:59:08,291 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 13:59:08,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-23 13:59:08,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 13:59:08,448 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-23 13:59:08,448 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 13:59:08,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 14 [2020-12-23 13:59:08,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405862503] [2020-12-23 13:59:08,449 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 13:59:08,449 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 13:59:08,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 13:59:08,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2020-12-23 13:59:08,450 INFO L87 Difference]: Start difference. First operand 30817 states and 164781 transitions. Second operand 7 states.